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You throw a 3.00 N rock vertically into the air from ground level. You observe that when it is 14.0 m above the ground, it is traveling at 22.0 m/s upward.
Part A: Use the work-energy theorem to find the rock's speed just as it left the ground.
Express your answer with the appropriate units.
V2=
Part B: Use the work-energy theorem to find its maximum height.
h max=
A particle attached to a spring with k 50 N/m is undergoing simple harmonic motion, and its position is described by the equation x (5.7 m)cos(7.5t), with t measured in seconds.
A four-bladed airscrew is required to propel an aircraft at 125 ms-1 at sea level, with a rotational speed of 1200 rpm. The blade element at 1.25-m radius.
Find the direction and magnitude of the net electrostatic force exerted on the point charge q2 in the figure below. Let q = +2.4 µC and d = 35 cm
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You are standing at rest with respect to the earth holding a lance which you measure as 10 meters long and a knight traveling on horseback at .7c is holding a lance which he measures as 10 meters long. Which lance hits the other person first
A 14.0 bucket is lowered vertically by a rope in which there is 193 of tension at a given instant. What is the acceleration of the bucket? Is it up or down
An ?-particle has a charge of +2e and a mass of 6.64 multiply.gif 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.12 multiply.gif 106 V, What is the radius of its circular path
A block of weight 9.8N is placed on a table. What will happen when the table surface exerts an upward force of 10 N on the block. Assume g = 9.8 m/s2.
The force vector A has a magnitude of 75.0 newtons (N) and points due east. The force vector B has a magnitude of 138 N and points 75.6 ° north of east. Find the (a) magnitude and (b) direction of A - B
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