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A rock is projected from the edge of the top of a building with an initial velocity of 12.2 m/s at an angle of 53? above the horizontal. The rock strikes the ground a horizontal distance of 25 m from the base of the building. Assume that the ground is level and that the side of the building is vertical. How tall is the building?
A submarine sends a sonar signal, which returns from another ship 2.250 s later. How far away is the other ship if the speed of sound in seawater is 1,530.0 m/s
A steel washer is suspended inside an empty shipping crate from a light string attached to the top of the crate. The crate slides down a long ramp that is inclined at an angle of 39 degrees above the horizontal. The crate has mass 244 kg .
A small, 300g cart is moving at 1.30m/s on an air track when it collides with a larger, 5.00kg cart at rest. What is the speed of the large cart after the collision
A cannon is fired from the ground. The cannonball initially travels with a speed of 300 m/s at an angel of 25 degrees with respect to the ground, What is the cannonballs maximum height
q1. a thermos contains 161 cm3 of coffee at 82.0 degc. to cool the coffee you drop two 10.8-g ice cubes into the
A block of mass m = 2 kg and initial velocity v = 5 m/s runs into and compresses a spring of spring constant k = 50 N/m. How long is the block in contact with the spring
A sample of a material has 40000 radioactive particles in it today. Your grandfather measured 80000 radioactive particles in it 60 years ago. how many radioactive particles will the sample have
A spaceship of rest length 192 m races past a timing station at a speed of 0.780c. What is the length of the spaceship as measured by the timing station
A muon travels 60 km through the atmosphere at a speed of 0.9995c. According to the muon, how thick is the atmosphere
suppose the PASCO track is 120 cm long. Assume the track is frictionless, and suppose one end is lifted by 1.66 cm. Find the angle between the track and the horizontal
IP An rms voltage of 12.5V with a frequency of 1.10kHz is applied to a 0.375?F capacitor. Calculate the current for a frequency of 2.20kHz
Ball 1, with a mass of 150g and traveling at 10.0m/s , collides head on with ball 2, which has a mass of 300g and is initially at rest. What are the final velocities of each ball if the collision is perfectly elastic? What are the final velocities of..
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