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A worker uses a cart to move a load of bricks a distance of 10 m across a parking lot. If he pushes the cart with a constant force of 209 N, what amount of work does he do? Show your work.
A positive charge of 4.80 C is fixed in place. From a distance of 3.60 cm a from the fixed positive charge, a particle of mass 5.70 g and charge +3.70 C is released from rest.
A plane flies at 1.25 times the speed of sound. The sonic boom reaches a man on the ground exactly 1 min after the plane passed directly overhead. What is the altitude of the plane
What is the angular velocity of a 50 Kg diver who changes the radius of gyration from .5 meters to .2 meters while in flight
An inductor (L = 400 mH), a capacitor (C = 4.43 µF), and a resistor (R = 500 ?) are connected in series. Calculate the required maximum voltage
What is the largest index of refraction that the liquid can have, such that none of the light is transmitted into the liquid and all of it is reflected back into the solid
Light from a helium-neon laser (?=633nm) is used to illuminate two narrow slits. What is the spacing (in mm) between the slits
if the velocity of a 5.0 kg object tied to a string is constant at 30 ms when traveling in a vertical circle having a
In a particular double slit experiment, ther distance between the slits is 50 times the wavelength of light. find the angles at whcih the first two minima occur
A solenoid that is 75 cm long produces a magnetic field of 1.4 T within its core when it carries a current of 7.6 A. How many turns of wire are contained in this solenoid
A 20.0kg rock slides on a rough horizontal surface at 5.50 m/s and eventually stops due to friction. What average thermal power (Watts) is produced as the rock stops
a?1000 kg aircraft going?25 ms collides with a?1500 kg aircraft that is parked. they stick together after the collision
A child on a sled is initially at rest on an icy horizontal surface. Find the work done by the force pushing the sled
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