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(a) Compute the impulse necessary to bring to rest the 45.0 kg driver of an automobile initially moving at 26.0 m/s.
(b) Find the average force on the driver if the deceleration is accomplished gradually by the application of brakes over a 10.6 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 long solenoid of length of 50 cm and an area 40 cm^2 has 320 turns. what is the magnetic energy in the solenoid
You have a wire of length L = 2.4 m for making a square coil of a dc motor. Find the maximum torque exerted on the coil
A 45.3-cm diameter disk rotates with a constant angular acceleration of 2.20 rad/s2. It starts from rest at t = 0, Find the linear velocity and tangential acceleration of P at t = 2.30 s
Consider neon, a noble gas whose molecules consist of single atoms of atomic mass 0.02 kg/mol. What is the root-mean-square speed of a neon atom under such conditions
q1. a projectile is fired horizontally from a gun that is 48.0 m above flat ground emerging from the gun with a speed
An astronomical telescope uses an eyepiece of power +80.000 D. what is the magnification of the telescope
The motor of a four wheeler traveling along a muddy trail generates an average power of 7.20 104 W when moving at a constant speed of 11 m/s. What is the tension in the tow rope pulling the log
A -2.47 ?C charge is placed at the center of a conducting spherical shell, and a total charge of +8.70, Calculate the total charge on the outer surface of the conductor
A spacecraft is in orbit around a planet. The radius of the orbit is 3.1 times the radius of the planet (which is R = 71455 km). What is the period of the spacecraft's orbit
A 74.8 g sample of copper at 143.2°C is added to an insulated vessel containing 165 mL of glycerol, C3H8O3 (l) (d = 1.26 g/mL), at 24.8°C. The final temperature is 31.1°C. The specific heat of copper is 0.385 J g-1°C-1
Two, concentric, thin spherical shells of radii R1 = 28.3 cm and R2 = 35.4 cm are uniformly charged with a total charge Q1 = -63.5 ?C, What is the potential of the outer shell
A uniform 1.0 kg cylinder of radius 0.10 m is suspended by two strings wrapped around it. What is the acceleration of the center of mass of the cylinder
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