there are many natural processes that shape the earth's surface. these processes can act as constructive forces, destructive forces, or both. in general, natural processes act as destructive forces
Answers
Natural processes that shape the Earth's surface can act as both constructive and destructive forces, but in general, they tend to act more as destructive forces. The Earth's surface is constantly being shaped by a variety of natural processes, such as weathering, erosion, volcanic activity, and movement.
These processes can have both constructive and destructive effects on the landscape. Constructive forces, like deposition of sediment or volcanic eruptions, can create new landforms and contribute to the formation of mountains, valleys, and plains. However, destructive forces tend to have a more prominent role in shaping the Earth's surface.
Destructive forces, such as erosion caused by wind, water, or ice, wear down and remove materials from the Earth's surface. Over time, these forces can lead to the formation of canyons, cliffs, and coastal features. Weathering, the breakdown of rocks and minerals, also plays a significant role in the destruction of the Earth's surface. Chemical weathering, physical weathering, and biological weathering gradually break down rocks into smaller particles, further contributing to the reshaping of the landscape.
While constructive forces have their impact, natural processes generally tend to act more as destructive forces. The continuous cycle of erosion and deposition reshapes the Earth's surface over long periods of time. However, it's important to note that the balance between constructive and destructive forces may vary depending on factors such as climate, geology, and local conditions.
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Related Questions
Which of the following is a definition of acceleration? *
Answers
Answer:
Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.
What force causes galaxies to move away from one another?.
Answers
Answer:
energy left over from the big bang
Explanation:
on the celestial sphere, which of the following terms are specific to the observer (that is, they are unique for unique observers)? (choose all that apply.) select one or more: a. celestial equator b. north celestial pole c. nadir d. meridian e. horizon f. zenith g. ecliptic
Answers
The terms specific to the observer are e, f, and g. The ecliptic is the path that the Sun appears to follow across the sky throughout the year as viewed from Earth.
The horizon is an imaginary line that marks the point where the sky and the Earth's surface seem to meet. The zenith is an imaginary point directly overhead from the observer's location.
The celestial equator is an imaginary line that runs around the celestial sphere, dividing it into two hemispheres. The north celestial pole is the point directly above the observer's north horizon. The nadir is an imaginary point directly below the observer's location.
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A Ferris wheel with a diameter
of 40 m makes one revolution
every 20 minutes. What is its
average speed in meter/min?
Answers
Answer:
6.3 m/min
Explanation:
Circumference of a circle = 2πr
r = D/2 = 40m/2 = 20m
C = 2π(20m) = 125.7 m
speed = distance/time = (125.7 m) / (20 min) = 6.3 m/min
a) A cell of dry air is moved vertically from its original position under adiabatic conditions. Depending on the temperature profile of the surrounding atmosphere, this gas cell can keep on moving in the same direction, or it may come back to its original position. Considering the temperature profile of the atmosphere, change of the air cell temperature as it moves up and down in the surrounding atmosphere, as well as relative densities of the air cell and atmosphere, explain why and when the atmosphere is considered to be convectively stable and convectively unstable. In answering this question, use diagrams of temperature change with altitude. (13 marks) b) Explain why the adiabatic lapse rate of dry air is different from the adiabatic lapse rate of wet saturated air. Show them both in a diagram. (5 marks) c) Wet unsaturated air rises from the ocean surface. The ambient lapse rate is higher than the adiabatic lapse rate for dry air. There is a temperature inversion layer at higher altitudes. Show in a schematic diagram how the temperature of the wet air changes with altitude, in comparison with the ambient temperature. Explain at what altitudes the cumulus clouds are formed and why. (7 marks)
Answers
The question addresses the stability of the atmosphere and the factors that determine convective stability or instability. It also explains the difference between the adiabatic lapse rate of dry air and wet saturated air.
a) The stability of the atmosphere is determined by the temperature profile and relative densities of the air cell and atmosphere. If the temperature of the surrounding atmosphere decreases with altitude at a rate greater than the adiabatic lapse rate of the air cell, the atmosphere is considered convectively stable.
In this case, the air cell will return to its original position. Conversely, if the temperature of the surrounding atmosphere decreases slower than the adiabatic lapse rate of the air cell, the atmosphere is convectively unstable. The air cell will continue moving in the same direction.
b) The adiabatic lapse rate refers to the rate at which temperature decreases with altitude for a parcel of air lifted or descending adiabatically (without exchanging heat with its surroundings). The adiabatic lapse rate of dry air is higher (around \(9.8^0C\) per kilometer) compared to the adiabatic lapse rate of wet saturated air (around 5°C per kilometer).
This difference arises because when water vapor condenses during the ascent of saturated air, latent heat is released, reducing the rate of temperature decrease. A diagram can illustrate the difference between the two lapse rates, showcasing their respective slopes.
c) When wet unsaturated air rises from the ocean surface, its temperature decreases at a rate equal to the dry adiabatic lapse rate. However, if the ambient lapse rate (temperature decrease with altitude) is higher than the adiabatic lapse rate for dry air, a temperature inversion layer forms at higher altitudes.
In this inversion layer, the temperature increases with altitude instead of decreasing. A schematic diagram can depict the temperature changes of the wet air in comparison to the ambient temperature, showing the inversion layer.
Cumulus clouds form at the altitude where the rising moist air reaches the level of the temperature inversion layer. These clouds are formed due to the condensation of water vapor as the air parcel cools to its dew point temperature.
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A spring with a spring constant of 34 N/m is stretched 14 m. What is the energy stored in the
spring?
Answers
Answer:
Elastic potential energy
Elastic potential energy is stored in the spring. Provided inelastic deformation has not happened, the work done is equal to the elastic potential energy stored.
Explanation:
becuse
Answer:10
Explanation:
ii) One of the containers is wide and shallow. The other container is narrow and deep
Predict which container has the greater rate of cooling. Explain your answer.
Answers
1. Calculate the total binding energy of 12
6 C.
Answer in units of MeV.
2. Calculate the average binding energy per nucleon of 24
12Mg.
Answer in units of MeV/nucleon.
3. Calculate the average binding energy per nucleon of 85
37Rb.
Answer in units of MeV/nucleon.
4. Find the binding energy per nucleon of 238
92U.
Answer in units of MeV/nucleon.
5. Calculate the total binding energy of 20
10Ne.
Answer in units of MeV.
6. Calculate the total binding energy of 40
20Ca.
Answer in units of MeV.
Answers
Answer:
1. B = 79.12 MeV
2. B = -4.39 MeV/nucleon
3. B = 2.40 MeV/nucleon
4. B = 7.48 MeV/nucleon
5. B = -18.72 MeV
6. B = 225.23 MeV
Explanation:
The binding energy can be calculated using the followng equation:
\( B = (Zm_{p} + Nm_{n} - M)*931 MeV/C^{2} \)
Where:
Z: is the number of protons
\(m_{p}\): is the proton's mass = 1.00730 u
N: is the number of neutrons
\(m_{n}\): is the neutron's mass = 1.00869 u
M: is the mass of the nucleus
1. The total binding energy of \(^{12}_{6}C\) is:
\( B = (Zm_{p} + Nm_{n} - M)*931.49 MeV/u \)
\( B = (6*1.00730 + 6*1.00869 - 12.011)*931.49 MeV/u = 79.12 MeV \)
2. The average binding energy per nucleon of \(^{24}_{12}Mg\) is:
\( B = \frac{(Zm_{p} + Nm_{n} - M)}{A}*931.49 MeV/u \)
Where: A = Z + N
\( B = \frac{(12*1.00730 + 12*1.00869 - 24.305)}{(12 + 12)}*931.49 MeV/u = -4.39 MeV/nucleon \)
3. The average binding energy per nucleon of \(^{85}_{37}Rb\) is:
\( B = \frac{(Zm_{p} + Nm_{n} - M)}{A}*931.49 MeV/u \)
\( B = \frac{(37*1.00730 + 48*1.00869 - 85.468)}{85}*931.49 MeV/u = 2.40 MeV/nucleon \)
4. The binding energy per nucleon of \(^{238}_{92}U\) is:
\( B = \frac{(92*1.00730 + 146*1.00869 - 238.03)}{238}*931.49 MeV/u = 7.48 MeV/nucleon \)
5. The total binding energy of \(^{20}_{10}Ne\) is:
\( B = (Zm_{p} + Nm_{n} - M)*931.49 MeV/u \)
\( B = (10*1.00730 + 10*1.00869 - 20.180)*931.49 MeV/u = -18.72 MeV \)
6. The total binding energy of \(^{40}_{20}Ca\) is:
\( B = (Zm_{p} + Nm_{n} - M)*931.49 MeV/u \)
\( B = (20*1.00730 + 20*1.00869 - 40.078)*931.49 MeV/u = 225.23 MeV \)
I hope it helps you!
suppose you were hired to build a dam. what features would you look for in a site? be sure to consider the impact on living things as well as the physical characteristics of the site.
Answers
The fact that the water is surrounded by sturdy rock, soil, and sand has some aspects that are highly advantageous if I were in charge of assessing a site for a hydraulic dam to generate electricity.
A hydraulic dam is a barrier constructed through a river or lake to redirect or hold back water. The Engolasters dam, for example, uses its related infrastructure to generate energy, create a vertical drop, and retain water from the rivers.At 1,616 meters above sea level, Lake Engolasters is an oblong lake located in Andorra's Encamp parish (5,302 ft). created in a depression left by a glacier.Therefore we know that, a hydraulic dam is where power is generated.
Electricity is produced at the dam and distributed throughout the entire nation. A dam is formed by six main elements.
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1. Re-arrange the Ohm’s Law equation to solve the following:I = Type your answers here.R = Type your answers here.2. Power is equal to voltage multiplied by current. Add the missing information in each of the following power equations.P = V Type your answers here.P = R Type your answers here.P = V2 Type your answers here.
Answers
2)
\(\begin{gathered} P=VI \\ P=RI^2 \\ P=\frac{V^2}{R} \end{gathered}\)Explanation
Step 1
Ohm's law states that the strength of a direct current is directly proportional to the potential difference and inversely proportional to the resistance of the circuit.
\(I=\frac{V}{R}\)so
a)
\(I=\frac{V}{R}\)b)
\(\begin{gathered} I=\frac{V}{R} \\ \text{Multiply both sides by R} \\ I\cdot R=R\cdot\frac{V}{R} \\ IR=V \\ \text{divide both sides by I} \\ \frac{RI}{I}=\frac{V}{I} \\ R=\frac{V}{I} \end{gathered}\)Step 2
2
let
Power is equal to voltage multiplied by current.
so
\(P=VI\rightarrow(1)\)also, replacing
\(\begin{gathered} P=VI \\ P=(IR)I \\ P=RI^2\rightarrow(2) \\ \end{gathered}\)also
\(\begin{gathered} V^2=I^2R^2 \\ \text{hece} \\ I^2=\frac{V^2}{R^2} \\ \\ \text{therefore, } \\ P=RI^2\rightarrow(2) \\ P=\frac{V^2}{R^2}\cdot R \\ P=\frac{V^2}{R} \end{gathered}\)I hope this helps you
a bullet of mass 0.010 kg and speed of 100 m/s is brought to rest in a wooden block after penetrating a distance of 0.10 m. this process takes 0.02 second. the magnitude of the impulse delivered to the bullet by the block during this time is
Answers
The magnitude of the impulse delivered to the bullet by the block during this time is 0.90 Ns.
The mass of the bullet is given as 0.010 kg and its initial speed as 100 m/s. After travelling 0.10 m, the bullet comes to rest in a wooden block. The time taken for the bullet to stop is 0.02 seconds. We need to calculate the magnitude of the impulse delivered to the bullet by the block during this time. We can use the formula for impulse, which is Impulse = Force × Time. Impulse is defined as the change in momentum. Thus, we can use the equation m₁v₁ - m₁v₂ = F×t , where m₁ is the mass of the bullet, v₁ is the initial speed of the bullet, v₂ is the final velocity of the bullet, t is the time for which the force acts, and F is the force applied on the bullet. In this case, we know the mass and initial speed of the bullet. We need to find the final velocity of the bullet to calculate the force. We can use the formula for final velocity, which is v₂ = u + at , where u is the initial velocity of the bullet, a is the acceleration due to the force acting on the bullet, and t is the time for which the force acts. Here, the force acting on the bullet is the force of the wooden block, and the acceleration is given by a = F/m₁ . Thus, we have v₂ = u + F/m₁ × t . The distance travelled by the bullet is given as 0.10 m. We can use the formula for distance travelled, which is s = ut + ½at² . Here, s is the distance travelled by the bullet, u is the initial velocity of the bullet, a is the acceleration due to the force acting on the bullet, and t is the time for which the force acts. We have u = 100 m/s, s = 0.10 m, and t = 0.02 s. We can use this equation to calculate the acceleration of the bullet. Solving for a, we get a = (2s - ut) / t² = (2 × 0.10 - 100 × 0.02) / (0.02)² = -450 m/s². Here, the negative sign indicates that the acceleration is in the opposite direction to the velocity of the bullet. Substituting this value of a in the equation for v₂, we get v₂ = 100 - 450 × 0.02 / 0.010 = 10 m/s. Thus, the change in velocity of the bullet is Δv = v₂ - v₁ = 10 - 100 = -90 m/s. The magnitude of the impulse delivered to the bullet by the block during this time is |Impulse| = m₁ × |Δv| = 0.010 × 90 = 0.90 Ns. Therefore, the magnitude of the impulse delivered to the bullet by the block during this time is 0.90 Ns.
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Matching Scientists with Atomic Models
Which scientist and atomic model are correctly matched?
Bohr – plum pudding
Thomson – electron cloud surrounds nucleus
Rutherford – plum pudding
Schrödinger – electron cloud surrounds nucleus
Answers
The correct answer is option 4 Schrödinger.
The distribution of electrons within Thomson's model's positively charged region of space quickly earned it the informal moniker "plum pudding," since it reminded many scientists of the raisins—then known as "plums"—found in the traditional English delicacy plum pudding.
Erwin Schrodinger's Electron Cloud Model. With the help of this concept, electrons were no longer pictured as being in a fixed orbit around a central nucleus.
In a series of publications published in 1926, Schrödinger addressed the problem of wave functions and electrons. He utilised mathematical calculations to quantify the probability of finding an electron in a particular position in addition to describing what would later be known as the Schrodinger equation, a partial differential equation that explains how the quantum state of a quantum system varies with time.
This served as the foundation for the Schrodinger equation and the Electron Cloud (quantum mechanical) Model, respectively. The Electron Cloud Model, based on quantum theory, which holds that all matter has qualities related to a wave function, is different from the Bohr Model in that it does not specify the precise route of an electron.
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A 0. 0850-kg arrow is fired horizontally. If the bowstring exerts an average force of 89. 0 n on the arrow over a distance of 0. 782 m, with what speed does the arrow leave the bow?.
Answers
The arrow leaves the bow at a speed of 40.47 m/s.
When the arrow is released from its bow, the arrow will move and accelerate. Newton's second law of motion applies to the arrow. The formula F = ma
m = mass of the arrow (kg) = 0.0850 kga = acceleration of the arrow (m/s²)F = force (N) = 89.0 N\(a \:=\: \frac{F}{m}\)
\(a \:=\: \frac{89.0}{0.0850}\)
a = 1,047.059 m/s²
When the object has acceleration, the object will move in a non-uniform motion. The formula
v = u+atv² = u² + 2ad\(d \:=\: v_0 \times t \:+\: \frac{1}{2} \times a \times t^2\)u = initial speed (m/s) = 0 m/s (arrow stationary in bowstring)v = final speed (m/s) a = acceleration (m/s²) = 1,047.059 m/s²t = interval (s)d = distance (m) = 0.782 mv² = u² + 2ad
v² = 0² + (2×1,047.059×0.782)
v² = 1,637.6
\(v_t \:=\: \sqrt{1,637.6}\)
\(v_t\) = 40.47 m/s
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Please help me. ( I don’t know what subject to put this in )
Answers
differentiate between basic quantities and physical quantities
Answers
Answer:
Base quantities are the minimum numbers of the physical quantities. Base quantities are defined as the physical quantities which can not be defined in terms of other physical quanities. There are seven base quantities. Physical Quantitie Units Derived Quantities are defined as those physical quantities which are derived from the base quantities.
Explanation:
A physical quantity is a property of a material or system that can be quantified by measurement. A physical quantity can be expressed as the combination of a numerical value and a unit. For example, the physical quantity mass can be quantified as n kg, where n is the numerical value and kg is the unit. A physical quantity possesses at least two characteristics in common, one is numerical magnitude and other is the unit in which it is measured.
Distinguish between a basic physical quantity and a derived physical quantity giving an example of each. Answers. Basic physical quantities are quantities which can be obtained without derivation. e.g Temperature. While derived physical quantities are quantities which can only be obtained from other physical quantities.
pls the answer.........................................................................................................................
Answers
a) The motion of the motorcyclist is a uniform motion
b) The distance is 600 m
c) The speed is 20 m/s.
What is the motion?We now that motion has to do with the change in the position of an object with time. In this case, we have the graph that described the motion of the motorcyclist . It is clear that the distance is increasing in equal amounts, in equal time intervals thus this is a uniform motion.
Looking at the graph, we can see that the motorcyclist covers 600 meters of distance within 30 seconds.
We can obtain the speed as the ratio of the distance to the time or the slope of the graph. Hence the speed is obtained from;
Speed = distance / time
Using the slope concept;
\(y_{2} - y_{1} /x_{2} - x_{1}\)
= 600 - 0/30 - 0
= 20 m/s
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parallel parking is a multi-step process, with the first step being: a) a driver should turn the wheels to the right sharply and reverse the vehicle toward the vehicle behind the empty space. b) as the front passenger door passes the rear bumper of the front vehicle, a driver should turn the steering wheel so that the wheels are straightened and continue in reverse c) a driver should stop the vehicle in line with the vehicle in front of the empty space and about two feet away d) a driver should put the vehicle in drive gear and move the vehicle to the center of the lane
Answers
Parallel parking is a multi-step process, the first step in parallel parking is to turn the wheels to the right sharply and reverse the vehicle toward the vehicle behind the empty space.
Parallel parking can be a challenging task for new drivers or people who have not practiced it before. It is a must-have skill that every driver should have. However, it is not an impossible task, and a little bit of practice can make a driver perfect in parallel parking. The process of parallel parking involves a few simple steps. The first step in parallel parking is to make sure that the space is large enough to park the vehicle. Next, position the vehicle parallel to the vehicle parked in front of the empty space, making sure that the bumpers are aligned. The driver should stop the vehicle in line with the vehicle in front of the empty space and about two feet away. The next step is to turn the wheels to the right sharply and reverse the vehicle toward the vehicle behind the empty space. It is essential to check the rearview and side mirrors frequently to avoid any collisions. As the front passenger door passes the rear bumper of the front vehicle, a driver should turn the steering wheel so that the wheels are straightened and continue in reverse. Once the vehicle is parked, a driver should put the vehicle in drive gear and move the vehicle to the center of the lane. The driver should make sure that the vehicle is at a safe distance from other vehicles parked nearby.
Parallel parking is a multi-step process that requires a driver to put the vehicle between two vehicles in a parking spot. The first step in parallel parking is to turn the wheels to the right sharply and reverse the vehicle toward the vehicle behind the empty space. A driver should make sure to check the rearview and side mirrors frequently to avoid any collisions. Finally, the driver should put the vehicle in drive gear and move the vehicle to the center of the lane.
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a metal block measures 10cm×2cm×2cm. What is its volume? How many blocks each 2cm×2cm×2cm have the same total volume?
Answers
40cm³ is volume of a metal block measures 10cm×2cm×2cm and 5 blocks have the same total volume.
volume=l×b×h
volume=10cm×2cm×2cm= 40cm³
volume=l×b×h
volume= 2cm×2cm×2cm=8cm³
blocks have the same total volume= 40cm³/8cm³= 5
The space occupied inside an object's borders in three dimensions is referred to as its volume. It is sometimes referred to as the object's capacity. Finding an object's volume can help us calculate the quantity needed to fill it, such as the volume of water needed to fill a bottle, aquarium, or water tank.
A sphere is the most basic and typical form of a three-dimensional shape. We see spheres on a regular basis in the form of balls, globes, ornamental lights, oranges, etc.
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Explain why it is safe to eat food from the uranium glass plate.
a. idea that food is irradiated / not contaminated.
b. alpha cannot penetrate skin or body
c. contains low percentage of uranium(-238).
Answers
The answer for Eating food from a uranium glass plate is safer is Choice C which is food is irradiated / not contaminated.
It is safer to eat food from a uranium glass plate because the uranium added to the glass will always be in the oxidized form used to color it. The uranium added to the glass will also be not soluble thus it will not be radioactive.
Thus, the reason for eating food safely from the uranium glass plate is it will not be contaminated
The other two options(alpha cannot penetrate skin or body and contains a low percentage of uranium) will be wrong because the plate will be completely non-radioactive.
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The distance between a charge and the source of an electric field changes from 3 mm to 6 mm.
As a result of the change, the electric potential energy of the charge is ______.
A. divided by 6
B. divided by 2
C. multiplied by 2
D. multiplied by 6
Answers
Answer:
c
Explanation:
The electric potential energy of the charge is divided by 2.
To find the electric potential energy, the values given from the source of an electric field changes from 3 mm to 6 mm.
What is electric potential energy?The electric potential energy is the energy that is needed to move a charge against the electric field.
The energy can be calculated as Work and these energy can be calculated as a whole not only the charges.
Formula for electric potential energy,
U = KQ²/r
where,
K is the constant, k = 9 × 10⁹
Substituting the values of q as the charges and then the distance can be,
U = KQ² / 3 and U = KQ² / 6
So that, the values can be divided by 2.
The unit of electric potential energy is Joule.
The distance can be from r to ∞.
Hence, Option B is the correct answer.
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The school is 1 km away from a teacher’s house. A teacher driving to the school has an acceleration of 20 m/s2 . When starting from rest, what would be the distance travelled in 10 seconds? How much more distance does the teacher have to travel to reach the school?
Answers
\(x = \frac{at {}^{2} }{2} + vt + x(0)\)
\(x = \frac{20 \times (10) {}^{2} }{2} + 0 + 0 = \frac{2000}{2} = 1000 \: meters\)
2)0 meters since she has already reached school. Note: 1000 meters = 1 kilometerPor una resistencia de 10 Ω fluyen 5A. ¿Cuál será la diferencia de potencial que se le debe aplicar a la resistencia?
Answers
Answer:
V = 50 volts
Explanation:
Given that,
Resistance, R = 10 ohms
Current, I = 5 A
We need to find the potential difference across the circuit. We know that,
V = IR
Put all the values,
V = 5 × 10
V = 50 volts
Hence, the potential difference is equal to 50 volts.
Which option is an example of a transverse wave?
A. A wave on top of water
B. A wave carried through a rope
C. A sound wave
D. An ocean wave
Answers
Answer:
B! wave carry through the rope
Explanation:
Does the shape of a skateboard affect how will travel?
Answers
Answer:
Yes
Explanation:
The shape will affect the friction and the way the skateboard moves.
a distant star is traveling directly away from earth with a speed of 38500 km/s when the wavelengths in this star's spectrum are measured on earth, are they greater than, less than, or the same as the wavelengths we would find if the star were at rest relative to us?
Answers
When a distant star is traveling directly away from Earth with a speed of 38500 km/s, the wavelengths in the star's spectrum as measured on Earth would be greater than the wavelengths we would observe if the star were at rest relative to us. This effect is known as the redshift.
The redshift occurs because the motion of the star causes a Doppler shift in the wavelengths of light emitted by the star. The Doppler effect causes the wavelengths of light to stretch out (i.e., increase in wavelength) if the source is moving away from the observer. The amount of stretching or redshift is proportional to the velocity of the star relative to the observer and the wavelength of the light.
In this case, the star is moving away from Earth at a high velocity of 38500 km/s, so the wavelengths of light that we observe on Earth will be stretched out or increased compared to the wavelengths emitted by the star when it was at rest. This means that the wavelengths in the star's spectrum will be greater (i.e., shifted towards the red end of the spectrum) than the wavelengths we would observe if the star were at rest relative to us.
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what happens to the temperature of matter as distance is increases
Answers
As the distance between particles of matter increases, the temperature of the matter decreases.
Temperature is the average kinetic energy of particles in a substance. If particles are farther apart, they have less potential for collision, and thus, less kinetic energy. Hence, a decrease in temperature occurs. The opposite effect occurs as the distance between particles decreases. The temperature increases as the particles are closer together and, therefore, have more potential for collision.Temperature measures the amount of thermal energy present in a substance, which is the energy that particles possess due to their motion. When there is less thermal energy in a substance, it is cooler, and as the energy increases, the substance becomes warmer. This principle applies to matter in all its states. Even though the relationship between temperature and distance is not the only factor that affects the thermal energy of a substance, it is one of the most significant.
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Choose all the answers that apply.
Currently, children are vaccinated for _____.
whooping cough
cancer
chicken pox
measles
polio
Answers
Answer:
Measles and Whooping Cough
Explanation:
I really hope so
Answer:
Hey
Explanation:
2
Select the correct answer.
Which statement is true about acceleration?
OA.
It is the rate of change of speed per unit time.
OB.
It is the rate of change of displacement per unit time.
Ос.
It is the rate of change of velocity per unit time.
OD.
It is the rate of change of position per unit time.
Reset
Next
Answers
Answer:
the answer is C ----- it is the rate of change of velocity per unit time
Explanation:
acceleration
\( = \frac{velocity(v)}{time(t)} \)
What value of resistor R gives the circuit in the figure a time constant of 22 μs ?
Answers
The value of resistor R that gives the circuit in the figure a time constant of 22 μs is 220 Ω.
The circuit that is in the figure is shown below:Given that time constant (RC) = 22 μs. To find the value of resistor R, we need to use the formula for the time constant:
RC = τ, where R is the resistance and C is the capacitance of the circuit.
Rearranging the above formula, we get:R = τ / C
Where τ is the time constant and C is the capacitance of the circuit.
From the figure, the capacitance is given as 0.1 μF
.Substituting the values of τ and C in the above formula, we get:
R = (22 × 10⁻⁶ s) / (0.1 × 10⁻⁶ F)
R = 220 Ω
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Question 23
Which one of the following is not a potential impact of global warming?
a. increased crop yield, particularly of citrus fruits
b. loss of biodiversity
c. the sea level is likely to rise
d. human morbidity and mortality rates are liable to rise
Answers
The Increased crop yield, particularly of citrus fruits, is not a potential impact of global warming. In fact, global warming could have a negative impact on agriculture, leading to reduced crop yields and food shortages.
The other options, loss of biodiversity, rising sea levels, and increased human morbidity and mortality rates, are all potential impacts of global warming. The increased crop yield, particularly of citrus fruits This option is not a potential impact of global warming because while warmer temperatures may initially benefit some crops, the overall effects of climate change, including extreme weather events, water scarcity, and increased pests and diseases, are expected to have a negative impact on crop yields in the long term.
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