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A 2.71 kg object moves in a plane with velocity components vx = 50.0 m/s and vy = -92.0 m/s as it passes through the point (x,y) = (2.5,-4.6) m. What is the magnitude of its angular momentum relative to the origin at this moment?
What is the magnitude of its angular momentum relative to the point (-2.0,-2.0) m at this same moment?
a mass of 40 kg is attached to the end of a cord that passes over a frictionless pulley and then has a mass of 35 kg
An object of length 3 cm is inside a plastic block with index of refraction 1.40. If the object is viewed through the top surface of block at a non-zero angle from the normal, where is an object relative to its image.
A bicycle is turned upside down while its owner repairs a flat tire on the rear wheel. A friend spins the front wheel, of radius 0.335 m, and observes that drops of water fly off tangentially in an upward direction when the drops are at the same l..
Heat flows into an ideal gas at a constant volume. The pressure increases from 1.5 atm to 5.5 atm. What is the total heat flow of the process
At one instant, a 19.0-kg sled is moving over a horizontal surface of snow at 5.00 m/s. find the magnitude of the average friction force acting on the sled while it was moving
A solenoid that is 111 cm long has a cross-sectional area of 13.8 cm2. There are 958 turns of wire carrying a current of 7.62 A. Calculate the energy density of the magnetic field inside the solenoid
An 79 kg person is parachuting and experiencing a downward acceleration of 2.0 m/s2 shortly after opening the parachute. What upward force is exerted on the open parachute by the air
if you had a small diameter spring and made pulses, then got a different diameter spring, with the same tension and same length of the spring, What are two ways to affect the speed of a wave
a 2.0kg block of wood rests on a long tabletop. A 5.0 g bullet moving horizontally with a speed of 150 m/s is shot into the block and sticks in it. Find the speed of the block just after impact
A (massless) rope is wrapped around a wheel of radius R= 2 meters. The wheel is mounted with a frictionless bearing on the center axle through the center. What is the moment of interia of the wheel
A low-power laser used in a physics lab might have a power of0.50 mW and a beam diameter of 3.0mm. calculate the average light intensity of the laser beam
A horizontal block and spring system with negligible friction is initially in equilibrium. The mass of the block is 0.160 kg. Theblock is pulled to one side so that its initial displacement is0.150 m.
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