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A not so brilliant physics student wants to jump from their third floor apartment window to the swimming pool below. The problem is the base of the apartment is 8.00 m from the pool's edge. If the window is 20.0 m high, obtain how fast does the student have to be running horizontally to make sure they make it to the pool's edge?
A 50 kg skater pushes off horizontally for a distance of 0.4m witha force of 150N. If she travels 80m before stopping, what is the coefficient of friction
A diffraction grating has a spacing of 350 lines per mm and sits L = 47.7 cm from a screen. what is the wavelength of the laser
A 55 kilogram packing crate is pulled with constant speed across a rough floor with a rope that is at an angle of 42.6o above the horizontal. find how much work is done on the crate to move it 7.0 meters
Two polarizers are out of alignment by 24.1°. If light of intensity 1.00 W/m2 and initially polarized halfway between the polarizing angles of the two filters passes through the two filters
A speeder is racing down the road at a constant speed of 90mi/h. A police officer is having coffee while the speeder zips past her. How Far down the road does the officer catch the speeder
A young man owns a canister vacuum cleaner marked "532 W [at] 120 V" and a Volkswagen Beetle, which he wishes to clean. what is the actual power delivered to the cleaner
A 1 mF, a 2 mF, and a 3 mF capacitor are connected in series, the combination being connected across a 9 volt battery. Which capacitor has the greatest voltage?
suppose a single piece of welded steel railroad track stretched 5000 km across the continental united states. if the
A Venturi meter measures fluid speed in a pipe. A constriction (of cross-sectional area A2) is put in a pipe of normal cross-sectional area A1 (A1 = 2A2). Find the ratio of the flow speeds
It's your birthday, and to celebrate you're going to make your first bungee jump. How far are you above the water when the cord reaches its maximum elongation
A rock weighing 400 N sits on the edge of a 60 m cliff. How much potential energy does it have
an electron in a uniform electric field increases its speed from 1.7times107 to 4.1times107 over a distance of 1.3.
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