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Problem: A car (m = 1,100 kg) is traveling at an initial speed of 13 m/s. It then slows to a stop over a distance of 86 m due to a force from the brakes.
Part A: How much work is done on the car?
I need help to solve the above question and assume the acceleration is constant.
ow does this change in amplitude affect the wave's frequency.
a 30.0 w lightbulb is 19.0 percent efficient. this means that 19.0 percent of the electric energy is converted to light
Suppose that in Sherwood Forest, the average radius of a tree is R= 1 m and the average number of trees per unit area is 0.005m^(−2). If Robin Hood shoots an arrow in a randomdirection, how far, on average, will it travel before itstrikes a tree?
Three moles of neon expand isothermally from 0.112 m3 to 0.307 m3 while 5.12 × 103 Joule of heat flows into the gas. Suppose that neon is an ideal gas, find its temperature
At one point in space, the electric potential energy of a 10nC charge is 38?J. What is the electric potential at this point? If a was 20 nC charge were placed at this point and what would its electric potential energy be?
A hoop and a cylinder of the same mass and outer radius are rolled up an incline plane with the same speed. Which goes farther up the incline plane? Explain
A submarine of mass 2.1x 103 kg and initially at rest firesa torpedo of mass 260 kg. The torpedo hasan initial speed of 100.1 m/s. What is the initial recoil speed of the submarine in m/s?
Calculate torques about an axis
consider two spheres with two masses and two charges. at a distance of 119.0 m the ratio of the electric force to the
A step-up transformer has 26 turns on the primary coil and 770 turns on the secondary coil. what input current and voltage are needed
A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30 degree relative to the normal. find at what angle does the light leave the glass
A 4.4 x 10^14 Hz laser emits a 2.1 mS pulse, 5.0 mm in diameter, Calculate the number of wavelengths in the length of the beam
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