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An object at rest on a flat, horizontal surface explodes into two fragments, one seven times as massive as the other. The heavier fragment slides 9.10 m before stopping. Assume that both fragments have the same coefficient of kinetic friction. How far does the lighter fragment slide?
you produce an image of the sun on a screen using a thin lens whose focal length is 23.0 cm. what is the diameter of
The determined Wile E. Coyote is out once more to try to capture the elusive road runner. The coyote wears a new pair of Acme power roller skates, which provide a constant horizontal acceleration of 15 m/s^2.
An osprey's call is a distinct whistle at 2200Hz. An osprey calls while diving at you, to drive you away from her nest. You hear the call at 2300 Hz. How fast is the osprey approaching
a certain lcd projector contains a single thin lens. an object 23.5mm high is to be projected so that its image fills a
A huge space cruiser passes earth at speed c/2. It launches a small fighter ship away from earth (thank goodness) at speed c/2 relative to the cruiser. What is the speed of the fighter ship relative to earth
A small ball with mass m is attached to a string, which goes over a pulley and makes a small angle swing. find the string tension as a function of the angle
Liquid nitrogen boils at 77.00 K. Would this experiment needs to be altered if we used water, which boils at 373 K? Why.
A weather balloon is designed to expand to a maximum radius of 24 m at its working altitude, where the air pressure is 0.030 atm and the temperature is 200 K. what is its radius at liftoff
what must the charge sign and magnitude of a particle of mass 1.47 g. be for it to remain stationary when placed in a
A 20 {rm kg} child plays on a swing having support ropes that are 2.3 {rm m} long. A friend pulls her back until the ropes are 39.0^circ from the vertical and releases her from rest.
carnival ride has a large horizontal steel disc of radius 5m from which cars are suspended by a 6m long chain. the disx is rotated about its axis so that the cars swing out and revolve in a circular path. at operation speed the angle of the chains ..
Draw a ray diagram depicting the following: and object is 20cm in front of a concave mirror whose radius of curvature is 25cm. Calculate the image position using the mirror equation
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