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A block is connected among two springs on a frictionless, horizontally level track. The other end of each spring is respectively anchored to a vertical pin set at opposite ends of the track. If the spring constants are determined to be 3 N/m and 1.6 N/m, and the period of oscillation for the block when slightly displaced from equilibrium point is 0.6s, what is the mass of the block?
A 21.7-kg child descends a slide 3.5 m high and reaches thebottom with a speed of 2.2 m/s. How much thermal energy due tofriction was generated in this process
a student throws a rock with speed 20.0 m/s at 30 degrees off the edge of a cliff. how far horizontally off the edge does it hit the water
Quarterback Fred is going to throw a pass to tight end Doug.Doug is 20m in front of Fred and running in a straight line away at 6. m/s when fred throws the 500g ball at a 40 deg angle, How fast did Fred throw the ball
A crate is sliding down a ramp that is inclined at an angle of 25.2° above the horizontal. Find the acceleration of the moving crate
An elevator is moving upward at a constant speed of 2.50 m/s. A bolt in the elevator ceiling 3.00 mabove the elevator floor works loose and falls. How long does it take for the bolt to fall to the elevator floor
Suppose that white light is reflected from a thin soap film. what color will the film appear to be when viewed in reflected light
a man stands on the roof of a building of height 16.1m and throws a rock with a velocity of magnitude 26.8 m/s, Calculate the maximum height above the roof reached by the rock
a basketball player who is 2 m tall is standing on the floor 10 m from the basket. If he shoots the ball at a 40.0 degree angle with the horizontal, at what initial speed should he throw so that is goes through the hoop without striking the backbo..
A jet airliner moving initially at 300 mi/h due east enters a region where the wind is blowing at 100 mi/h in a direction 28.0° north of east. What is the new velocity of the aircraft
Light from a He-Ne laser of wavelength 633 nm passes through a circular aperture. What is the diameter of the hole
A golf club strikes a 0.044-kg golf ball in order to launch it from the tee. For simplicity, With what speed does the ball leave the club
A motorcycle has a constant speed of 20.9 m/s as it passes over the top of a hill whose radius of curvature is 125 m. Find the magnitude of the centripetal force
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