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Aaron Agin nodded off while driving home from play practice this past Sunday evening. His 1500-kg car hit a series of guardrails while moving at 19.8 m/s. The first guard rail delivered a resistive impulse of 5700 N•s. The second guard rail pushed against his car with a force of 79000 N for 0.12 seconds. The third guard rail collision lowered the car's velocity by 3.2 m/s. Determine the final velocity of the car.
The 20-g centrifuge at NASA's Ames Research Center in Mountain View, Determine the rotation rate, in revolutions per second, required to give the astronaut a centripetal acceleration of 19.8g
Assume that the brakes in your car create a constant deceleration of 2.8 m/s2 regardless of how fast you are driving. Calculate the stopping distance for the initial speed
At some point in its orbit, our asteroid is moving with a speed of 20 kilometers per second. Determine the kinetic energy of the asteroid
What is the electrons velocity when it emerges from the electric field region?
A proton travels with a speed of 4.90106m/s at an angle of65°with the direction of a magnetic field of magnitude0.240T in the positivex-direction. What is the magnitude of the magnetic force on the proton?
A bullet with mass m = 20.0 g is fired horizontally towards the center of mass of the disk with a speed of v0 = 500m/s. In unit vector notation, what is the angular momentum L of the bullet with respect to point P just before it collides with the ..
A nuclear bomb explosion results in a mass decrease of about between the initial and the final components. How much energy is released? Let the speed of light c = 3.00 x108 m/s.
a student calculates the unknown liquid to have a density of 0.87 gcm3. if the class average for the density of the
List (by number and name) and define with words or equations each of Newton's Laws governing linear motion. Give a real life example illustrating each.
A stone is thrown vertically upward at a speed of 29.90 m/s at time t=0. A second stone is thrown upward with the similar speed 2.070 sec later. Find at what height do the two stones pass each other
The Record distance in the sport of throwing cowpats is 81.1 m. This record toss was set by Steve Urner of the United States in 1981. Determine the total time the projectile was in flight
A small button placed on a horizontal rotating platform with diameter 0.326m will revolve with the platform when it is brought up to a rotational speed of 43.0rev/min, How far from the axis can the button be placed, without slipping,
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