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(a) Compute the impulse necessary to bring to rest the 53.0 kg driver of an automobile initially moving at 20.0 m/s.
(b) Find the average force on the driver if the deceleration is accomplished gradually by the application of brakes over a 12.1 s interval.
(c) Find the average force if the car is stopped in a collision that brings the driver's seat to rest in 0.100 s, assuming the driver is restrained by a seat belt.
A 1200 turn coil in a dc motor has an area per turn of 2.2 * 10-2m-2. What is the current in the coil
An ideal monatomic gas is contained in a vessel of constant volume 0.340 m3. The initial temperature and pressure of the gas are 300 K and 5.00 atm, Find the specific heat of the gas
During a lunar eclipse, the moon, earth, and sun all lie on the same line, with the earth between the moon and the sun. calculate the centripetal acceleration of the moon
Explain why heat can only be transferred from a hot object to a cold object and not the other way around.
Translational equilibrium occurs when an object moves with constant velocity or is at rest resulting in an acceleration of magnitude equal to zero. Which law(s) governs this relationship
A rabbit runs in a garden such that the x- and y- components of its displacement as function of times are given by x(t) = -0.45 t2 - 6.5 t + 23.3 and y(t) = 0.35 t2 + 8.3 t + 49.9
You drop a stone down a well that's 9.5m deep. How long until you hear the splash? Assume the speed of sound in air is 343m/s
Use the pivot as the reference point because then two of the four forces on the plank exert zero torque. Which two? Since the plank is at rest, Find the normal force acting at the pivot point
Two blocks are connected by a string. The smooth inclined surface makes an angle of 35 degrees with the horizontal, and the block on the incline has a mass of 5.70 kg. The mass of the hanging block is m= 2.90 kg. Find the direction of the hanging blo..
2.7 moles of neon gas expand adiabatically and in the process do 980J of work. Whats the gas's temperature drop
A 35.0 cm diameter coil consists of 30 turns of a circular copper wire 2.80 mm in diameter. determine the rate at which thermal energy is produced
For safety in climbing, a mountaineer uses a nylon rope that is 69 m long and 1.0 cm in diameter. Whilst supporting a 96-kg climber, the rope elongates 1.4 m. Find its Young's modulus.
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