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A proton moves eastward in the plane of Earth's 5x10^-5 T magnetic equator so that its distance from the ground is constant. What is the speed of the proton?
A 27 pound meteorite struck a car, leaving a dent 26cm deep in the trunk. If the meteorite struck the car with a speed of 620m/s, what was the magnitude of its deceleration, assuming it to be constant.
A small object is placed to the left of a convex lens and on the optical axis. obtain the position of the image formed by the lens?
A zookeeper and a monkey. The zookeeper shot a tranquilizer gun with an initial v=30m/s. The monkey was up on a tree 140m high. What is the monkeys speed during free fall
You throw a bouncy ball directly down toward the ground. When it leaves your hand, 1 m above the ground, it is moving at 5 m/s. What is the ball's maximum height after it bounces
You measure an electric field of 1.37×106N/C at a distance of 0.159m from a point charge. What is the electric flux through the surface of a sphere
A magnetic field has a magnitude of 0.0014 T, and an electric field has a magnitude of 4.2 × 103 N/C. compute the magnitude of the net force that acts on the charge
A ball is thrown upward from the ground with an initial speed of 23.90 m/s; at = same instant, a ball is dropped from a building 16 m high. After how long will the balls be at the same height.
A particle leaves the origin with an initial velocity of 4.20 m/s in the x direction, and moves with constant acceleration ax = -1.80 m/s2 and ay = 2.30 m/s2. a-How far does the particle move in the x direction before turning around? b-What is the..
Treating a lightning bolt as a long, thin wire, calculate the magnitude of the magnetic field produced by such a bolt of lightning at a distance of 71 m.
A loudspeaker of mass 21.0 {rm kg} is suspended the distance of h = 2.40 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.90 {rm m}.
The last exhibit had a cylinder of mass 1.2 kg and radius .2 meters rolling down an incline with a linear velocity of 2 m/s. How much torque must be exerted by the friction force
A 60.0 kg pole vaulter running at 12.0 m/s vaults over the bar. Assume that the vaulter's horizontal component of velocity over the bar is 1.0 m/s and disregarding air resistance, how high was the jump?
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