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A rock is thrown off a 120m cliff at a velocity of 2.9m/s[37 degrees above horizontal]. What is the final velocity of the rock as it hits the ground?
q1. an airplane flies 200 km due west from city a to city b and then 315 km in the direction of 33.0deg north of west
What is the radius of curvature of the mirror. How far would it coast before starting to roll back down.
A clock has a second hand whose tip rubs against the inside of the glass cover. what is the minimum torque that must be applied to the second hand
Which requires more heat- a kg of air raised 20degrees celsius to 30 degrees celsius or a kg of aluminum raised from 20 degrees celsius to 30 degrees celsius?
Calculate the speed of an 8.5 × 104 kg airliner with a kinetic energy of 1.2 × 109 J
In a large centrifuge used for training pilots and astronauts, asmall chamber is fixed at the end of a rigid arm that rotatesin a horizontal circle. A trainee riding in the chamber of acentrifuge rotating with a constant angular speed of 2.5 rad/s..
An 78.3 centimeter long pendulum with a 0.516 kilogram bob is released from rest at an initial angle of θ0 with the vertical. At the bottom of the swing, Find what angle does the pendulum make with the vertical
A 0.17 kg baseball is launched from the roof of a building 12m above the ground. What is the speed of the ball as it strikes the ground
A rocket is fired at a speed of 53.0 m/s from ground level, at an angle of 65.0 degree above the horizontal. Find by how much does the rocket clear the top of the wall
A car is traveling counterclockwise along a circular bend in the road with a radius of 200m, What is the magnitude of the cars acceleration
The distance between two successive maxima of a transverse wave is 1.20m. Eight crests, or maxima, pass a given point along the direction of travel every 12.0s. Calculate the wave speed.
A shower head has 20 circular openings, each with radius 0.80mm. The shower head is connected to a pipe with radius 1.0cm. what is its speed as it exits the shower-head openings
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