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an inclinced plane mass is .5kg inclinced plane at 30 degrees is 6.40m long, a book has kinetic friction with the incline of .2 and is placed at the top and begins to slide using the law of conservation of energy
a) find out the speed at the bottom of the incline
b) work done by friction
c) how much time did it take for the book to get to the bottom.
A ship at sea has its radio transmitting antenna at a 10 m height above the surface of the water. how far from the cliff must the ship be
Torque can be calculated by multiplying the force (N) applied at 90 degrees to the lever arm at a distance (m) from the pivot point (point of rotation), what is the torque on the lever
The springs of a 1500kg car compress 6.0mmwhen its 61kg driver gets into the driver's seat. what will be the frequency of oscillations
A ladder weighs 150 N, is 5m long, and is leaning against a frictionless wall at an angle of 30* with the horizontal. Draw an extended freebody diagram of this situation
What is the tangential velocity of a satellite in a circular orbit 300km above the surface of the Earth, How long does the satellite take to complete one orbit
An astronaut travels from a distant star to the Earth at speed 0.992c. What is the distance from the star to the Earth as measured by an observer on the Earth
If an organ pipe, 2 ft long and with one end closed and one end open, how long is the second organ pipe
a piano note is compared to a tuning fork vibrating at 440 Hz. Four beats per second are discerned by the piano tuner. What was the initial frequency of the piano wire
A mass-spring system oscillates with an amplitude of 5.60 cm. If the spring constant is 226 N/m and the mass is 453 g, determine the mechanical energy of the system
A rock climber stands on top of a 53{\rm m} -high cliff overhanging a pool of water. He throws two stones vertically downward 1.0{\rm s} apart, What is the speed of the first stone as it hits the water
A 1.1 kg particle-like object moves in a plane with velocity components vx = 20 m/s and vy = 50 m/s, What is its angular momentum relative to the origin at this moment
Assume you are 65.00 cm from a plane mirror. What area of the mirror is used to reflect the rays entering one eye from a point on the tip of your nose if your pupil diameter is 5.0 mm.
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