Answer:
Thanks!!!!! adding this so it doesn’t get deleted.
Explanation:
1. Electrostatic forces are trillions of times stronger than gravitational forces. 2. normal force and friction 3. contact forces 4. The electrostatic forces from the contact of the hands with the paper causes the paper molecules to separate. 5. The electrostatic forces between the molecules of the board prevent the force of gravity from breaking the board apart.
The correct statement over here is that electrostatic forces are trillions of times stronger than gravitational forces. Hence, option C is correct.
What is an Electrostatic Force?One of the basic forces in the cosmos is electrostatic force. In the universe, there are four basic forces. These include gravitational force, electromagnetic force, weak nuclear force, and strong nuclear force. Under the umbrella of electromagnetic force is electrostatic force. Two charges placed apart are subject to the electrostatic force. The size of each charged and the separation between them determines how much electrostatic force there will be.
When two charges of the same type are brought together, whether positive or negative, they repel one another. It is known as the electrostatic force of repelling when it operates among two charges that are similar.
Therefore, the electrostatic forces are trillions of times stronger than the gravitational forces.
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A student creates an electromagnet, How could the student create a larger current in the electromagnet?
Answer
When an electric current flows in a wire, it creates a magnetic field around the wire. This effect can be used to make an electromagnet. A simple electromagnet comprises a length of wire turned into a coil and connected to a battery or power supply.
A coil of insulated wire is wrapped around an iron nail. One end of the coil of wire is connected to a battery. The other is connected to a switch in the circuit
A simple electromagnet
You can make an electromagnet stronger by doing these things:
wrapping the coil around a piece of iron (such as an iron nail)
adding more turns to the coil
increasing the current flowing through the coil
There is a limit to how much current can be passed safely through the wire because the resistance of the wire causes heating.
How do the displacement, velocity, and acceleration of a runner change as he races from the starting
line toward the finish line along a straight path?
Answer:
maybe line toward the finish
Explanation:that question is confusing
Velocity is the pace at which your displacement is shifting; it describes how quickly and in which direction you are travelling. And acceleration, which is measured in meters per second, is the rate at which your velocity is changing (or meters per second squared).
What factor that affect the acceleration and velocity?Net force and mass are the two primary factors that impact how quickly an item accelerates. For instance, mass has an inverse relationship with acceleration while net force has a direct relationship.
The acceleration is also influenced by other elements like friction, air or fluid resistance, and pressure.
According to the second law, the mass of the item and the net force acting on it both impact how quickly an object accelerates.
Therefore, an object's acceleration is directly proportional to the net force applied on it and inversely proportional to its mass.
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Item 7
Jose gets up from his seat on the bus to move closer to the front. Just as he begins to walk forward, the bus stops at a light.
What is the best explanation of what happens to Jose?
While Jose is walking, he is in motion due to the force of repulsion. When the bus stops, he is catapulted forward due to the bus's stronger force of attraction.
While Jose is walking, his body is in motion, but when the bus stops, he continues to move forward due to inertia.
While Jose is walking, his body is in motion, but as the bus stops, it exerts a force on Jose opposite to the direction he is walking, causing him to stop as well.
While Jose is walking, his body is in motion, but when the bus stops, an unbalanced force accelerates his body backward.
Answer:
While Jose is walking, his body is in motion, but when the bus stops, he continues to move forward due to inertia.
Explanation:
inertia
Answer:
Jose falls on the floor of the bus.
Explanation:
because his body is in motion
Using this formula vf =vi+at if a vehicle starts from rest and. Accelerates forward at 4.5m/s for 8s what is the final velocity of the vehicle
Answer: vf= 36 m/s
Explanation:
By using this formula vf =vi+at ,if a vehicle starts from rest and. Accelerates forward at 4.5 meters/seconds for 8 seconds, then the final velocity of the vehicle would be 36 meters/second.
What are the three equations of motion?There are three equations of motion given by Newton,
v = u + at
S = ut + 1/2×a×t²
v² - u² = 2×a×s
As given in the problem we have to find out the final velocity of the vehicle if it accelerates forward at 4.5 meters/second² for 8 seconds,
By using the first equation of motion,
Final velocity = initial velocity ×time + acceleration ×time
v = u + at
v = 0 + 4.5×8
v = 36 meters/second
Thus, the final velocity of the vehicle would be 36 meters/second.
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sound waves, light waves, UV waves, IR waves. We use these waves all of the time to listen to the radio, use Bluetooth in our cars, make phone calls, etc.
In a well-organized structure, write a 3-5 paragraph length essay discussing the physics of waves and how they play a major role in your daily life. Be sure to discuss their properties as well: transverse/longitudinal, frequencies, amplitudes, etc.
Waves are an essential part of the physical world, and they play a crucial role in our daily lives. Waves can be broadly categorized into two types: mechanical waves and electromagnetic waves. Mechanical waves require a medium to travel, such as sound waves, while electromagnetic waves do not need a medium and can travel through space, such as light waves. Both types of waves exhibit unique properties, including amplitude, frequency, wavelength, and speed.
Sound waves are mechanical waves that require a medium to travel, such as air or water. These waves are longitudinal, meaning they move in the same direction as the wave. They have properties such as amplitude, which is the magnitude of the wave, and frequency, which is the number of waves that pass through a point in a given amount of time. Sound waves have a wide range of frequencies, from low-frequency waves, such as the sound of a bass guitar, to high-frequency waves, such as a dog whistle.
Electromagnetic waves, on the other hand, do not require a medium to travel and can travel through a vacuum, such as space. These waves are transverse, meaning they move perpendicular to the wave. They also have properties such as frequency and amplitude. Electromagnetic waves have a wide range of frequencies, from radio waves used to transmit music to gamma rays used to treat cancer.
In our daily lives, waves play a significant role. For example, we use radio waves to listen to the radio, watch television, and make phone calls. We use microwaves to heat food quickly, and we use infrared waves to sense heat and motion in security systems. We also use visible light waves to see the world around us, and ultraviolet waves to help our bodies produce vitamin D.
In conclusion, waves are a fundamental aspect of the physical world and play a significant role in our daily lives. Whether it's listening to the radio, using Bluetooth in our cars, or making phone calls, waves are involved in almost everything we do. Understanding the properties of waves, including frequency, amplitude, and wavelength, is crucial in understanding how waves function and how they affect our daily lives.
A parallel circuit has four branch currents: 120 mA, 380 mA, 250 mA, and 2.1 A. How much current is supplied by the source?
A parallel circuit is an electrical circuit with more than one current path and all circuit components are connected between the same two sets of electrically common points. The current supplied by the source in a parallel circuit is equal to the sum of all branch currents in the circuit.
The sum of the branch currents in a parallel circuit can be calculated by adding up the values of the individual branch currents. In this case, we have four branch currents: 120 mA, 380 mA, 250 mA, and 2.1 A. Thus, the sum of the branch currents is:120 mA + 380 mA + 250 mA + 2.1 A= 2.85 ATherefore, the current supplied by the source in this parallel circuit is 2.85 A. This is because, in a parallel circuit, the current from the source is split between the different branches of the circuit. Each branch will have a different current, but the sum of all the branch currents will always equal the current supplied by the sourceFor such more question on parallel circuit
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A/An _____ is described as an automatic switch that acts as a safeguard in an electric current.circuit breakerfuseground fault interruptervoltage divider
ANSWER
circuit breaker
EXPLANATION
A circuit breaker is an automatic switch that is activated to protect an electrical circuit when an sudden increase in the circuit's current appears. This could happen when there's an overload or a short circuit.
What is measurement?
Answer:
the process of associating numbers with physical quantities and phenomena.
The background count from a detector was measured to be 845 over a 30-min period. A source to be measured increases the total counting rate to about 80 counts/min. Estimate the time the source should be counted to determine the counting rate due to the source alone to within a fractional standard deviation of 3%
The time required to measure the counting rate due to the source alone to within a fractional standard deviation of 3% is ~1,080,000 min (~18,000 hrs)
What is fractional?Fractional is a term used to describe a part of a whole. It is usually used in mathematics to refer to a number that is not an integer. Fractions are written as a numerator (the top number) and a denominator (the bottom number). For example, the fraction 1/2 is read as "one-half."
The time required to measure the counting rate due to the source alone to within a fractional standard deviation of 3% can be estimated using the following equation:
Time = (3σ/counting rate)²
Where σ is the standard deviation of the background count and the counting rate is equal to the total counting rate minus the background count.
In this case, the standard deviation of the background count is equal to the square root of the background count, which is 29.
The counting rate is equal to the total counting rate of 80 counts/min minus the background count of 845, which is -765 counts/min.
Therefore, the time required to measure the counting rate due to the source alone to within a fractional standard deviation of 3% is:
Time = (3*29/(-765))² = ~1,080,000 min (~18,000 hrs).
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Which of the following states that energy cannot be created or destroyed?
Answer:
germany
Explanation:
6) Why are we unable to work long without food?
Answer:
because we just do
Explanation:
well thats what i think im not too.sure about it honestly
Answer:
becauaw food provides us energy
The components of lifetime fitness include all of the following components except
Answer:it’s A
Explanation:
because i took the quiz
Answer:
D is the correct answer, not A
Explanation:
If moving charges create magnetic fields and all materials are made up of atoms that have moving charges, why are most things NOT magnetic?
Magnetism is the result of the "spin" of the electron and most of these cancel each other out in larger bodies thus most things not being magnetic.
If a 75 resistor is connected to a 18 V battery, how much current passes
through the resistor?
Answer:
0.24 A
Explanation:
Voltage is given by the equation :
V = I × R
Voltage = Current × Resistance
Rearrange to make Current/I the subject :
18 = I × 75
I = 18÷75
I = 0.24 A
Hope this helped and brainliest please
Dylan has made two different chemical batteries for a physics project. He is measuring how much voltage the batteries each produce. The first battery produces 3.12 volts, and the second battery produces 2.8 volts. Using the correct number of significant figures, how much greater was the voltage produced by the first battery, compared to the second?
0.3200 volts
0.320 volts
0.32 volts
0.3 volts
The voltage produced by the first battery is 0.32 volt greater when compared to the voltage produced by the second battery
Data obtained from the questionFrom the question given above, the following data were obtained:
Voltage produced by the first battery = 3.12 voltsVoltage produced by the second battery = 2.8 voltsHow great is the voltage of first =?How to determine how great the voltage of the first battery isWe can obtain how great the voltage of the first battery is compared to the voltage if the second battery as follow:
How great is the voltage of first = Volatge of first - voltage of second
How great is the voltage of first = 3.12 - 2.8
How great is the voltage of first = 0.32 volt
Thus, the voltage of the first battery is greater than the voltage of the second battery by 0.32 volt
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A student carries a backpack for one mile. Another student carries the same backpack for two miles
Compared to the first student, how much work did the second student do?
Answer:
Compared to the first student, the second student did twice as much work as the first student.
Explanation:
The work done by the first student will be equal to the Force exerted by the backpack on the student carrying it multiplied by one mile (Distance). The work done by the second student will be equal to the Force exerted by the backpack on the student carrying it multiplied by two miles (Distance).
1. If a spring has a spring constant of 2 N/m and it is stretched 5 cm, what is the force of
the spring?
What is energy anything that takes up space and has mass a change in the position of an object a push or pull the ability to cause change in matter
Energy is that which has the ability to cause change in matter.
What is energy?Energy is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed.
So in simple definition we can say that energy is that which has the ability to cause change in matter.
Based on the given statements we can classify them as;
anything that takes up space and has mass - matter.cause a change in the position of an object through push or pull - forcethe ability to cause change in matter - energy.Learn more about energy here: https://brainly.com/question/13881533
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Which element is a metalloid?
Answer:
The metalloids are located on the right side of the periodic table in a "step-like" arrangement.
All of the possible metalloids are:
boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te), and polonium (Po)
what is current ?...
Answer:
current is the rate at which the charge pases through an electric conductor in a circuit.
formula: I = Q/t
where I is current, Q is charge and t is the time period.
hope that helps...
A student travels 4.0m East, 8.0m South, 4.0m west, and finally 8.0m north. What is her displacement
Answer:
travel travelled 24 meters
If soap bubble shows strong colors due to interference of the light that reflects from the inner and outer boundaries of the thin soap and water film. Light striking the outer surface has a phase change on reflection of pi. that is, its phase is flipped when it goes from air to the water surface and back out. Light reflecting from the inner surface, where it is in water then comes to the boundary with air, does not change its phase. Suppose you see white light reflecting from a bubble as it increases its size. The film making the bubble gets thinner and thinner and the colors reflecting from it change. If the bubble glows red, and then gets even thinner, what will you see just before it bursts?
a. Blue
b. Red
c. Darkness.
Answer:
the bubble appears DARK
Explanation:
This problem shows the interference by reflection of light on the surface, let's take it into account;
* There is a phase change of 180º on the surface when it stops from a lower medium to a higher index
* Within the film the wavelength changes due to the fraction index
\(\lambda_n = \frac{\lambda_o}{n}\)
if we plug this into the expression for constructive interference we have
2tn = (m + ½) λ₀
for destructive interference it is
2tn = m λ₀
apply these expressions to our case
indicate that the incident wavelength is red λ₀ = 700 nm
Let's find the minimum thickness that the film must have to have a constructive interference
the refractive index of soap is n = 1.4
from the constructive interference equation
t = (0+ ½) 700 10⁻⁹ / 2 1.4
t = 1.25 10⁻⁷ m
just before the soap bubble explodes the thickness (t) of the film less than the calculated value there is no possibility of constructive interference, therefore the bubble appears DARK
A cylindrical Benzene tank is 12ft high and 32in in diameter. How many kilograms of benzene can the tank store? help please make it good
Answer:
1670 kg
Explanation:
Convert the dimensions to cm.
12 ft × (12 in/ft) × (2.54 cm/in) = 365.76 cm
32 in × (2.54 cm/in) = 81.28 cm
Calculate the volume.
V = πr²h
V = π (81.28 cm / 2)² (365.76 cm)
V = 1,897,813.27 cm³
V = 1,897,813.27 mL
V = 1,897.81 L
Density of benzene is 0.88 kg/L.
m = (0.88 kg/L) (1,897.81 L)
m = 1670 kg
A wave traveling at 5.00x10^4 meters per second has a wavelength of 2.50x10^1 meters what is the frequency of the wave
Answer:
Frequency of the wave = 2 x 10³ hz
Explanation:
Given:
Velocity of wave = 5 x 10⁴
Wavelength = 2.5 x 10¹
Find:
Frequency of the wave
Computation:
Frequency of the wave = Velocity of wave / Wavelength
Frequency of the wave = [5 x 10⁴] / [2.5 x 10¹]
Frequency of the wave = 2 x 10³ hz
The frequency of a wave traveling at 5.00 x 10⁴ meters per second and a wavelength of 2.50x10¹ meters is 2 × 10³ Hz
HOW TO CALCULATE FREQUENCY:
The frequency of wave can be calculated by dividing the speed of the wave by its wavelength.λ = v/f
Where,
V= velocity of the wavef = frequencyλ = wavelengthAccording to this question, a wave is traveling at 5.00 x 10⁴ m/s and has a wavelength of 2.50 x 10¹ meters. The frequency can be calculated as follows:f = v ÷ λf = 5 × 10⁴ ÷ 2.5 × 10¹f = 2 × 10³HzTherefore, the frequency of a wave traveling at 5.00 x 10⁴ meters per second and a wavelength of 2.50x10¹ meters is 2 × 10³Hz.Learn more at: https://brainly.com/question/19601903?referrer=searchResults
Someone please help me...
the distance from the Earth to the sun equals 1 AU. Neptune is 30 AU from the sun. How far is Neptune from the Earth?
Answer:
1 astronomical unit, or AU, is the average distance from the Earth to the Sun; that's about 150 million km. So, Neptune's average distance from the Sun is 30.1 AU. Its perihelion is 29.8 AU, and it's aphelion is 30.4 AU.
Short Answer: it is 29
Explanation:
sorry if its wrong
Answer:
29
Explanation:
I just took a test! not only that but the other person who answered this question had the corrected answer.
A car starts from rest and accelerates to a speed of 30 m/s in a time of
3 seconds. The average acceleration of the car is ___m/s2
average acceleration is 10m/s2
Explanation:
average acceleration= final velocity- starting velocity/time
x=30-0/3
x=30/3
x=10
2. All of the following are examples of physical properties except:
A. tearing B. density C. melting point D. boiling point
All of the following are examples of physical properties except tearing.
What is Physical property?
This is used to describe the state of a physical system and is usually measurable.
Examples include:
DensityMelting point Boiling pointTearing isn't an example of a physical property which was why option A was chosen as the most appropriate choice.
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A 15-V battery and two resistors, RB of 36
and RA of 84 , are connected as a voltage
divider. What is the voltage across the 36-W
resistor?
The voltage across the 36-ohm resistor is 4.5 volts.
The voltage across the 36-ohm resistor in a voltage divider circuit can be calculated using the following formula:
Vb = V * (RB / (RA + RB))
where Vb is the voltage across the 36-ohm resistor, V is the voltage of the battery (15 V), RB is the resistance of the 36-ohm resistor (36 ohms), and RA is the resistance of the other resistor (84 ohms).
On putting the given values into the formula, we get:
Vb = 15 V * (36 ohms / (84 ohms + 36 ohms))
Vb = 15 V * (36 ohms / 120 ohms)
Vb = 4.5 V
Therefore, the voltage across the 36-ohm resistor is 4.5 volts.
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PLEASE SAVE ME FROM THIS PHYSICS QUESTION (WILL MARK BRAINLIEST)
A 21 kg child is riding a 5.9 kg bike with a velocity of 4.5 m/s to the northwest.
- What is the total momentum of the child and the bike together?
- What is the momentum of the child?
- What is the momentum of the bike?
Answer:
See Below
Explanation:
Mass of child = 21 kg
Mass of bicycle = 5.9 kg
Total mass = 22 + 5.9 = 27.9 kg
Velocity = 4.5 m/s
1) Total momentum of the child and the bike together
= Total mass * Velocity
= 27.9*4.5
= 125.55 kg m per second
2) Momentum of the child
= Mass of child*Velocity
= 21*5.9
= 123.9 kg m per second
3) Momentum of the bike
= Mass of bike*Velocity
= 5.9*4.5
= 26.55 kg m per second
How are magnetic fields like vectors?
Answer:Magnetic fields from two sources add up as vectors at each point, so the strength of the field is not necessarily the sum of the strengths1. Magnetic fields are vectors, which means they have direction as well as size. Therefore, the sum of two magnetic fields is not simply the sum of their magnitudes2.
Explanation: