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An object has a kinetic engery of 275J and a momentum of magnitusde 25.0 kg*m/s. Find the speed and the mass of the object.
A 0.07 kg bullet traveling at 569 m/s hits a 5.9 kg block of wood and stays in the wood. What is the velocity (speed)of the wood block
At what angle to the surface must a diver submerged in a lake look toward surface to see the setting Sun just all along the horizon.
a real object is located at the zero end of a meter stick. a large concave mirror at the 100 cm end of the meter stick
a what plate area is required if an air-filled parallel-plate capacitor with a plate separation of 2.5 mm is to have a
Movers are pushing a 78.0 kg trunk at .710 m/s when they encounter a 2.25 m long stretch of floor where the coefficient of friction is 0.295. If they push by a steady force F= 220N,decide the speed of the trunk at the end of the 2.25m stretch?
Hydrogen under p = 5 atmospheres and T = 20 C is warmed isobarically until its volume increases from 1 to 2 liters. Calculate the absorbed heat.
When responding to sound, the human eardrum vibrates about its equilibrium position. Find the maximum acceleration of the eardrum
A shoe store uses small floor-level mirrors to let customers view prospective purchases. At what angle from vertical must such a mirror be inclined so that a person standing 59 from the mirror with eyes 142 off the floor can see her feet.
A child is riding across a rough field on a sled. Together, she and the sled have a mass of 73 kg. The sled is being pulled by her brother at an angle of 16º with a force of 356 Newtons. What is her acceleration if the coefficient of kinetic friction..
Find the speed of an orbiter in a circular orbit that is just above the surface of a planet, given that the orbiter's acceleration is equal to the planet's gravitational acceleration of 2.13 m/s2
a short bar magnet of magnetic moment m 0.32 j t-1 is placed in a uniform magnetic field of 0.15 t. if the bar is free
A wire 2.45 m long carries a current of 19.2 A and makes an angle of 48.8° with a uniform magnetic field of magnitude B = 1.18 T. Calculate the magnetic force on the wire
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