Answers
Hi there!
We can use the following equation to solve for displacement:
vf² = vi² + 2ad, where:
vf = final velocity
vi = initial velocity
a = acceleration
d = displacement
Since the car will come to rest, vf = 0, so:
0 = vi² + 2ad
Plug in the given values:
0 = 25² + 2(-5)d (Breaking is a negative acceleration in this instance)
Solve:
0 = 25² - 10d
10d = 625
d = 62.5m
Subtract from the total distance from the car to the tree:
65 - 62.5 = 2.5m
Related Questions
Diamagnetic materialsA) have small negative values of magnetic susceptibility.B) are those in which the magnetic moments of all electrons in each atom cancel.C) experience a small induced magnetic moment when placed in an external magnetic field.D) exhibit the property of diamagnetism independently of temperature.E)are described by all
Answers
Answer:
C) experience a small induced magnetic moment when placed in an external magnetic field.
Explanation:
Diamagnetics materials are those that experience a small induced magnetic moment when placed in an external magnetic field. These materials, such as bismuth, copper, silver and lead, have elementary magnets in their compositions. When they are exposed to an external magnetic cap, these elemental magnets tend to follow an orientation contrary to the external magnetic field. As a result, a magnetic field is created in the opposite direction to the external magnetic field.
Which of the following is the best definition of a closed system?
A system in which there a no internal energy changes
A system in which Newton's Laws are valid
A system in which there are no external forces
A system in which the law of conservation of momentum is not valid
Answers
The answer is either
b A system in which Newton's Laws are valid
or
c A system in which there are no external forces.
Explanation:
not a, and not d
There are energy changes in a closed system.
A closed system obeys the conservation laws in its physical description.
What does the term "catastrophic event" mean to you
Answers
Answer:
an event which took place which had such a significant impact.
Explanation:
If the same force is applied to each of these balls, which one will have the LEAST
acceleration
A
m 1.0 kg
B
m=7.3 kg 1
С
m=0.75 kg
D
m=0.5 kg
Answers
Answer:
d is the awnser
Explanation:
MABY?!??
pls help need it last question on my test
Answers
The force that results in the decrease in speed from the midpoint to the end of the track is friction. The friction force slows down the vehicle because it acts in the opposite direction of the car's motion.
The force that would cause the Hot Wheels car to slow down from the midpoint of the track to the end of the track is friction between the car's wheels and the track.
Friction is a force that opposes motion between two surfaces in contact.
In this case, the wheels of the car and the surface of the track are in contact, and the friction force acts in the opposite direction of the car's motion, which slows it down.
As the Hot Wheels car travels down Track #2 during the Speed Lab activity, its initial velocity decreases due to friction.
Friction is a resistance force that opposes motion.
It is caused by the interaction between the surfaces in contact. In this case, the surface of the track and the wheels of the car are in contact.
When the car is moving, there is friction between the two surfaces.
The direction of the friction force is opposite to the direction of motion of the car.
This means that the friction force slows the car down.
In conclusion, the force that results in the decrease in speed from the midpoint to the end of the track is friction.
The friction force slows down the vehicle because it acts in the opposite direction of the car's motion.
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The energy goes from _____ to the _____ above it.
Answers
Answer:
The energy goes from the ground state to the excited states above it.
A stereo speaker produces a pure "G" tone, with a frequency of 392 Hz. What is the period T of the sound wave produced by the speaker?
Answers
Answer:
The period is \(T = 0.00255 \ s\)
Explanation:
From the question we are told that
The frequency is \(f = 392 \ Hz\)
Generally the period is mathematically represented as
\(T = \frac{1}{f}\)
=> \(T = \frac{1}{ 392}\)
=> \(T = 0.00255 \ s\)
Where should be the best fit line be drawn on a scatterplot?
A. In the center of the data
b. below the data
c. above the data.
d. none of these
Answers
A line of best fit is a straight line drawn through the most points on a scatter plot, with an equal number of points above and below the line. It is used to investigate the nature of the relationship between two variables. The correct option is d.
What is line of best fit?A straight line with the best fit is one that minimizes the distance between it and some data.
In a scatter plot of varying data points, the line of best fit is used to express a relationship. It is a result of regression analysis and can be used to forecast indicators and price movements.
It is important to note that your line does not need to pass through any of the points on the plot; it only needs to bisect the area that contains the data points.
Thus, none of the options are correct, the correct one is d.
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Given two blocks of wood made of the same material. Block A has a height of 10.0 cm, and block B has a height of 5.00 cm. Both are placed in water. If 7.00 cm of block A are underwater then how many centimeters of the height of block B will be underwater?A)7 B)3.5 C)1 D)2 E)4
Answers
Given data:
The height of block A is h₁=10 cm.
The heigh of of block B is h₂=5 cm.
The block A is sinked by x₁=7 cm.
The fraction of block A in the water will be,
\(\begin{gathered} f=\frac{x_1}{h_1} \\ f=\frac{7cm}{10cm} \\ f=0.7 \end{gathered}\)The height submerged in the water by block will be,
\(\begin{gathered} x_2=fh_2 \\ x_2=0.7(5cm) \\ x_2=3.5cm \end{gathered}\)Thus, the block B is 3.5 cm in the water.
Option B is correct.
Can you list the offensive position on a flag football team?
Answers
Answer:
yes u can flag football has everything that pad football has so you can enlist on being offensive position but you have to play like you want that position
Explanation:
Hi
Please help on question asap if the answer is correct I'll rate you five stars a thanks and maybe even brainliest!
When two light bulbs are connected in series, the resistance in the circuit is increase compared to that with one lightbulb. The increased resistance opposes the flow of current so far fewer electrons pass per second , transferring less energy. The lightbulbs are therefore not as bright as In a circuit with same voltage but only one bulb.
However, when Two lightbulbs are connected in parallel, each loop behaves like a separate circuit . The resistance in each branch is the same as if there were just one light bulb in the whole circuit.there is the same current in each branch of the circuit ,so the bulbs Will light up with the same brightness as a single bulb circuit. The energy stored in the battery will decrease twice as quickly and battery will run out faster than I series circuit.
6) explain the advantages and disadvantages of arranging components in series or parallel.
Answers
Advantages of Components Arranged in Series:
1. Increased resistance: Connecting components in series increases the overall resistance in the circuit. This can be advantageous in situations where you want to limit the flow of current or control the amount of power being dissipated.
2. Voltage sharing: In a series circuit, the total voltage of the power supply is divided among the components. This can be useful when you want to ensure that each component receives a specific voltage.
3. Current consistency: The current remains the same throughout the series circuit, which can be beneficial when you need to ensure a consistent current flow through multiple components.
Disadvantages of Components Arranged in Series:
1. Reduced brightness or performance: As mentioned in the question, when light bulbs are connected in series, the increased resistance reduces the flow of current, resulting in dimmer bulbs or reduced performance in other electrical devices.
2. Single point of failure: If one component in a series circuit fails, it can disrupt the entire circuit and cause all components to stop functioning.
Advantages of Components Arranged in Parallel:
1. Brightness and performance: When components such as light bulbs are connected in parallel, each component receives the full voltage, resulting in brighter bulbs and better performance in other devices.
2. Redundancy: In a parallel circuit, if one component fails, the other components can continue to function independently. This provides redundancy and ensures that the failure of one component does not affect the others.
3. Increased current capacity: Parallel arrangement allows the circuit to handle higher currents, which can be useful in situations where high power or heavy loads are required.
Disadvantages of Components Arranged in Parallel:
1. Increased complexity: Parallel circuits require more wiring and connections, which can make the circuit more complex and harder to manage.
2. Higher cost: Parallel circuits may require more components and wiring, resulting in higher costs for materials and installation.
It's important to consider the specific requirements and constraints of the application when deciding whether to arrange components in series or parallel. Each configuration has its advantages and disadvantages, and the choice depends on factors such as desired current flow, voltage distribution, and reliability.I
4. What are the 4 basic components of a circut?
Answers
Answer:
Every electric circuit, regardless of where it is or how large or small it is, has four basic parts: an energy source (AC or DC), a conductor (wire), an electrical load (device), and at least one controller (switch). Visualize what happens when you switch on a room light.
Explanation:
Hope this helps you
Please help and if you get this and answer the other one on my thing i’ll give u brainliest
How does increasing the energy of a wave affect its wavelength?
The increase in energy causes an increase in wavelength.
The shorter the wavelength, the lower the energy.
The higher the energy, the shorter the wavelength.
There is no relationship between energy and wavelength.
Answers
Answer:
The higher the energy, the shorter the wavelength.
Explanation:
what is the pressure of a tank of uniform cross sectional area 4.0m2 when the tank is filled with water a depth of 6m when given that 1 atm=1.013 x 10^5pa density of water=1000kgm-3 g=9.8m/s2
Answers
The pressure of a tank of uniform cross-sectional area 4.0m2 when the tank is filled with water at a depth of 6m is 58800 Pa.
Pressure calculationTo find the pressure in the tank, we can use the formula for pressure:
Pressure = density x gravity x height
Density of water (ρ) = 1000 kg/m³
Acceleration due to gravity (g) = 9.8 m/s²
Height (h) = 6 m
Thus:
Pressure = 1000 kg/m³ x 9.8 m/s² x 6 m
Pressure = 58800 kg/(m·s²)
Since the unit of pressure is Pascal (Pa), which is equivalent to kg/(m·s²), the pressure in the tank is:
Pressure = 58800 Pa
Therefore, the pressure in the tank when it is filled with water to a depth of 6 m is 58800 Pascal.
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If the parallel circuit had 23 amps with the same resistance, what will be the voltage
Answers
If the parallel circuit had 23 amps with the same resistance, the voltage will be V = 23 amps * R.
To determine the voltage in a parallel circuit with a given current and resistance, we can use Ohm's Law, which states that the voltage (V) is equal to the current (I) multiplied by the resistance (R).
In this case, if the parallel circuit has a current of 23 amps and the same resistance as before, we can use the same resistance value as before to calculate the voltage.
Ohm's Law equation: V = I * R
Given:
Current, I = 23 amps
Resistance, R (same as before)
Substituting the values into the equation, we have:
V = 23 amps * R
Therefore, The specific value of resistance (R) is not provided in the question, so the voltage (V) cannot be determined without knowing the resistance value. If the resistance value is provided, you can substitute it into the equation to calculate the voltage.
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The diagram shows a position-time graph.
A graph titled Position versus Time shows time in seconds on the x-axis, numbered 0 to 5, and position in meters on the y-axis, numbered 0 to 4. A straight line starts at (0, 0), slants upward to (2, 2), and slants downward to (4, 0).
What is the displacement of the object?
–2 m
–1 m
3 m
4 m
Answers
As the displacement is given by the difference between the final and initial positions, and the initial and the final positions coincide with each other, therefore the displacement of the object would be zero.
What is displacement?Displacement describes this shift in location.
Displacement is a vector quantity. This indicates that it has both a direction and a magnitude.
As given in the problem, a graph titled Position versus Time shows time in seconds on the x-axis, numbered 0 to 5, and position in meters on the y-axis, numbered 0 to 4. A straight line starts at (0, 0), slants upward to (2, 2), and slants downward to (4, 0),
As the position of the object is represented by the y coordinate, the initial and the final position of the object are the same,therefore the displacement of the object would be zero.
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What will be resultant force ?
Answers
Answer:
It will go to the right way 500N.
Explanation:
Because, up and down is 300 and 300 so it minus each other and get zero, that made the resultant force will never go up or down. And now we are focusing on the left and right. 900 is more than 400, so it will go to the right. But we also pull to the left too!! That make the resultant force is 500 to the right.
Can any one solve this question it’s urgent!!
Answers
r = √9/2(pg¹/₂) / (P-0)g. The expression is proved as follows:
How can we prove it?The following expression:
r = √9/2(pg¹/₂) / (P-0)g
where r is the radius of a cylindrical container filled with a liquid of density ρ, g is the acceleration due to gravity, and P is the pressure at the bottom of the container.
To prove this expression, express the equation for the pressure at a depth h in a fluid:
P = P0 + ρgh
where P0 is the pressure at the surface of the fluid, ρ is the density of the fluid, g is the acceleration due to gravity, and h is the depth of the fluid.
Supposing that the fluid is incompressible and that the pressure at the surface of the fluid is atmospheric pressure, P0 = 0. Rearrange the above equation to solve for h:
h = (P - P0) / (ρg)
Substituting the above expression for h into the formula for the volume V with height h and radius r:
V = πr²h
and simplifying using the expression for h derived above:
V = πr²(P - P0) / (ρg)
Solving for r:
r = √(V / (π(P - P0) / (ρg)))
= √(Vρg / π(P - P0))
Now, the mass of the fluid in the container is given by:
m = ρV
Substituting this expression into the equation for r above, we get:
r = √(mρg / π(P - P0))
Since the density of the fluid is given as ρ and the acceleration due to gravity is g, we can substitute these values to get:
r = √(mg / π(P - P0))
Finally, substitute the expression for P - P0 in terms of h and simplify to get:
r = √9/2(pg¹/₂) / (P-0)g
Therefore, we have proven the given expression for r.
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Which term describes the tendency of an object to resist changes in motion?
A) reaction
B) force
C) inertia
D) acceleration
Answers
Answer:
inertia
Explanation:
A student has a cannon that can fire a cannonball at speeds up to 97.0mph. The students wants to determine the maximum range of the cannon and if she could hit a target on the ground as shown. Neglect drag and the initial height of the cannonball.
Answers
Answer:
88 ft / sec = 60 mph
Thus 97/60 * 88 = 142 ft/sec maximum speed of cannonball
R = V^2 sin 2 θ / g = 142^2 / 32 = 630 ft
Using 3.28 ft / m
630 ft / 3.28 f/m = 192 m is the maximum range of the cannonball
Vy = 142 ft / sec * sin 45 = 100 ft/sec vertical speed at 45 deg
Tup = 100 ft/sec / 32 ft/sec^2 = 3.12 sec time to reach height
T = 2 * 3.12 = 6.24 total time in air when fired at 45 deg
T F
Organisms get energy from food
Answers
Answer:
It's true that organisms get energy from food.
Answer:
Explanation:
Organisms ingest large molecules, like carbohydrates, proteins, and fats, and convert them into smaller molecules like carbon dioxide and water. This process is called cellular respiration, a form of catabolism, and makes energy available for the cell to use
write short note : power
Answers
Answer:
In physics, power is the amount of energy transferred or converted per unit time. In the International System of Units, the unit of power is the watt, equal to one joule per second. In older works, power is sometimes called activity. Power is a scalar quantity.
SI unit: watt (W)
Derivations from other quantities: P = E/t; P = F·v; P = V·I; P = τ·ω
In SI base units: kg⋅m2⋅s−3
Answer:
As a student, what are your insights about this lesson? Write an essay on your
toughts about the types of drugs/subtance of abuse, discussing its description and
effects
Two skaters face one another and stand motionless, then push against each other on the ice. If one's mass is 55 kg and he moves to the left after the push at a velocity of 4.3 m/s, how fast was the other skater traveling after the push if her mass was 48 kg.
Answers
Answer:
3.75 m/s
Explanation:
55/4.3 = 48/x
12.8 = 48/x
x = 48 : 12.8
x = 3.75 m/s
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CAN YOU BRAINLEST ME PLEASE
In its search for flying insects, a bat uses an echolocating system based on pulses of high frequency sound. These pulses are 2.60 ms in duration, have a frequency of 50.0 kHz, and an intensity level of 120 dB at 1.25 m from the bat’s mouth. Assume the bat produces acoustic waves in a cone with a total angle of 32o . (a) What is the acoustic power of each pulse? (b) How much acoustic energy is there in each pulse? (c) What is the intensity level at a conical surface centered on the bat with radius equal to 6.50 m? (d) A June bug is located 6.5m from the bat. The effective cross-sectional area of the insect is 14.0 mm2 . How much of the acoustic power emitted by the bat strikes the insect? (e) Assume all the acoustic power intercepted by the June bug goes into the reflected wave which is hemispherical. What is the intensity level of the reflected wave at the bat’s ears?
Answers
The amount of energy that a wave may transfer to a unit area of a surface each second is measured as the wave's intensity. Watts per square meter is a unit used to express intensity. A sound wave's frequency is equal to its rate of vibration, and its intensity is determined by its amplitude.
What is the intensity of sound waves affect the frequency?The energy of a vibration is quantified in decibels as intensity or loudness (dB). A sound has a high intensity if it is loud.
Therefore, perceive noise as louder the higher the frequency, although frequency does not indicate how loud a sound is.
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In hiking, what fitness component is required of you
Answers
Iu Metallic bonding is similar to iconic bonding because
Answers
Answer:
In an ionic bond the valence electrons are transferred from the metal
Explanation:
Which of these types of EM radiation has the most energy?*
Radio waves
UV waves
Microwaves
O X-rays
Answers
An intrepid hiker reaches a large crevasse in his hiking route. He sees a nice landing ledge 60.0 cm below his position but it is across a 2.3 m gap. He spends 1.2 s accelerating horizontally at 5.92 m/s2 [right] in an attempt to launch himself to the safe landing on the far side of the gap. Does he make it?
Answers
The hiker made it to a safe landing on the other side of the gap after travelling horizontally at 2.49 m.
What is the time motion from the vertical height?
The time taken for the hiker to fall from the given height is calculated as follows;
h = vt + ¹/₂gt²
where;
v is the vertical velocity = 0t is the time of motiong is acceleration due to gravityh is the height of fallh = ¹/₂gt²
t = √(2h/g)
t = √[(2 x 0.6) / (9.8)]
t = 0.35 seconds
The horizontal velocity of the hiker during the period of acceleration is calculated as follows;
Vₓ = at
Vₓ = (5.92 m/s²) x (1.2 s)
Vₓ = 7.104 m/s
The horizontal distance travelled during the time period of 0.35 seconds;
X = Vₓt
X = 7.104 x 0.35
X = 2.49 m
Thus, the hiker made it to a safe landing on the other side of the gap which is 2.3 m wide and smaller to his horizontal displacement of 2.49 m.
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If all pairs of adjacent sides of a quadrilateral are congruent then it is called _________.
(A) rectangle (B) parallelogram (C) trapezium, (D) rhombus
Answers
Answer:
D
Explanation:
If you need an explanation feel free to ask.
Watch Bill Nye the Science Guy wave and I will make you brainlist yes and I will give you 25 points and pls do the notes
Take notes and write down key facts
Answers
Answer:
Bill bill bill bill
Explanation:
Omigosh you brought me back to my childhood.
(still watching it rn and will take notes)