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A cylindrical piston sits on top of hydraulic fluid that exerts a force of 240 N on the piston. The piston has a weight of 45 N and a weight of 170 N sits on top of the piston. Find the magnitude of the net force on the piston.
A jumper in the long-jump goes into the jump with a speed of 12 m/s at an angle of 20 deg. above the horizontal. How far does the jumper jump?
A certain compact disc player draws a current of 340 mA at 27.0 V. How much power is required to operate the player
A railroad car of mass 2.3 104 kg moving at 5.00 m/s collides and couples with two coupled railroad cars, What is the speed of the three coupled cars after the collision
Estimate the time constant in a RC circuit.
When a 5.5 cm long pencil is arranged perpendicular to a convex mirror's optical axis at a distance of 29 cm from the mirror, its image is 2.8 cm tall. (a) What is the mirror's focal length? (b) How tall is the pencil's image if the pencil is move..
At which wavelengths (or energies) will you observe lines in infrared absorption (a phonon absorbs a photon) and raman scattering spectra? The temperature is 300 k. raman scattering is excited with a cw Argon laser at 514.5 nm.
A person who weighs 616 N is riding a 108-N mountain bike. find the area of contact between each tire and the ground
a gymnast is performing a floor routine. In a tumbling run she spins through the air, How much time does this maneuver take
A doubly charged helium atom whose mass is 6.6 ×10?27kg is accelerated by a voltage of 2700V, What is its period of revolution
A bat flying in a cave emits the sound pulse and receives its echo in 3.5 s. How far away is the cave wall.
an airplane flying at a constant speed of 160 m/s pulls out of a dive in a circular arc. the 80 kg pilot presses down on his seat with a force of 3000 N, What is the radius of the arc
A 3.0x10 ² kg piano is being lifted at a steady speed from ground level straight up to an apartment 10 m above the ground. How much time does it take to lift the piano
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