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A sanding disk with rotational inertia I is attached to an electric drill whose motor delivers a torque of magnitude? about the central axis of the disk. About that axis and with torque applied for a time t, what is the magnitude of the
(a) angular momentum and
(b) angular velocity of the disk? State your answers in terms of the given variables.
A skateboarder shoots off a ramp with a velocity of 6.4 m/s, directed at an angle of 55° above horizontal.
A 0.75 H inductor is in series with a fluorescent lamp, and the series combination is across the 120 V rms, 60 Hz power line. Calculate the resistance of the lamp
A car is parked on a steep incline, making an angle of 37.0° below the horizontal and overlooking the ocean, when its brakes fail, Find the velocity of the car when it lands in the ocean
A child exerts a tangential 47.6 {N} force on the rim of a disk-shaped merry-go-round with a radius of 2.10 {m}. If merry-go-round starts at rest and acquires the angular speed of 0.080 {rev/s} in 3 {s}, what is its mass.
Sunlight falls on two polarizers with their polarization axes oriented 57° to one another. What fraction of the light intensity is transmitted
A smWhat is the speed of the large cart after the collision?all, 100g cart is moving at 1.20m/s on an air track when it collides with a larger, What is the speed of the large cart after the collision
A battery labeled 12.0 V supplies 1.63 A to a 5.5 resistor, What is the terminal voltage of the battery
The top of the pool table is 0.810 m from the floor. The placement of the tape is such that 0 m aligns to the edge of the table, At what speed did his pool ball hit the ground
The magnitude of the electric field across an axon membrane with the resting potential of -71.0 mV is 6.39e+06 V/m. How thick is the membrane
Your dog is running around the grass in your back yard. He undergoes successive displacements 3.37 m south, 8.45 m northeast, and 13.3 m west. What is the resultant displacement?
A 0.2-kg steel ball is dropped straight down onto a hard, Determine the magnitude of the impulse delivered to the floor by the steel ball
A diver, below the surface of a lake, notices that no light appears to be coming toward her greater than the angle è, what is the angle è
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