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(1) Evil Kneivel rides his motorcycle off the rim of the Snake River Canyon at a horizontal velocity of 52 meters per second. How far away from the edge will he have traveled in 0.29 seconds? NOTE: Assume he does not hit bottom.
(2) Evil Kneivel rides his motorcycle off the rim of the Snake River Canyon at a horizontal velocity of 54 meters per second. How far has he dropped (meters) into the canyon in 1.48 seconds? NOTE: assume he does not hit bottom.
(3) If you throw a 44 kg rock off of a cliff, how fast does it accelerate to the ground? The earth exerts a force of 200 Newtons on the rock. (Newton = kg over meter per second^2)
(4) A book slides off a table top with a speed of 15 meters per second. It strikes the floor in 0.56 seconds. How tall was the table (in meters)?
(5) A potato gun shoots a potato horizontally from a height of 6 feet. How long does it take to hit the ground?
A playground merry-go-round has radius 3-{rm m} and moment of inertia 3000-{rm{ kg}} cdot {rm{m}}^2 about a vertical axle through its center, and it turns with negligible friction.
a girl is using a rope to pull a box that weighs 300 N across a level surface with constant velocity. what is the normal force of the floor on the box
A man stands on a platform that is rotating (without friction) withan angular speed of 1.94 rev/s; what is the resulting angular speed of the platform
You are traveling in a car toward a hill at a speed of 36.4 mph. The car's horn emits sound waves of frequency 231 Hz, Determine the frequency with which the waves strike the hill
A cord is wrapped around the rim of a wheel r in radius, and a steady pull of F is exerted on the cord. The wheel is mounted on frictionless bearings on a horizontal shaft during its center. The moment of inertia of the wheel regarding this shaft is ..
How much voltage must be used to accelerate a proton (radius 1.2x10^-15m ) so that it has sufficient energy to just penetrate a silicon nucleus? A silicon nucleus has a charge of , and its radius is about 3.6 x10^-15m. Assume the potential is that fo..
A ceiling fan consists of a small cylindrical disk with 5 thin rods coming from the center. The disk has mass md = 3.4 kg and radius R = 0.26 m. The rods each have mass mr = 1.3 kg and length L = 0.72 m.
Presume the needle moves 7.5 mm from its highest to its lowest position and it makes 26 stitches in 9.1 s. What is the highest needle speed.
The free-fall acceleration at the surface of planet 1is14 m/s2. The radius and the mass of planet 2 are twice those of planet 1. What is the free-fall acceleration on planet 2?
A particle is pulled to the right with a force of 89.3 Newton, to the left with a force of 123.3N, upward with a force of 643.9 Newton, and downward with a force of 239.5 N. Find the magnitude of the net external force on particle
The pilot of an aircraft wishes to fly due west in a 47.7 km/h wind blowing toward the south. What should its speed relative to the ground be
when a signal of intensity 3.0kwm-2 is applied at the input of an amplifier of length 10m the output signal intensity
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