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A. A retired physics instructor is riding bulls at the rodeo to earn money. He is thrown upward at a forty degree angle. Assuming no air friction, at what points will the magnitude of his acceleration equal "g"?
B. A car is moving along a horizontal straight road. Is it possible for the forces acting on the car to sum to zero. Explain?
C. Why is it that the force of gravity does no work on your body as you sit in your chair?
Photorefractive keratectomy (PRK) is a laser-based surgery process that corrects near- and farsightedness by removing part of the lens of the eye to change its curvature and hence focal length. What is the energy of a single photon
find out the magnitude of force exerted on the lower end of the boom by the hinge.
Two disks of identical mass but different radii (r and 2r) are spinning on frictionless bearings at the same angular speed ?0, but in opposite directions. The two disks are brought slowly together. The resulting frictional force between the surfac..
tarzan swings on a 30.0 m long vine initially inclined at an angle of 37.0o with the vertical.a sketch a diagram and
A copper wire is 2 meters long. when a certain load is hung from the wire, making sure the wire is straight, how much does each inter-atomic bond stretch
The lead female character in the movie Diamonds Are Forever is standing at the edge of an offshore oil rig. Under the same assumption, determine what would be her recoil velocity if, instead, she shoots a blank cartridge that ejects amass of 0.00064..
Find out the distance between the point of firing and the point at which the 2.6-kg fragment strikes the ground.
The drawing shows two situations in which charges are placed on the x and y axes. They are all located at the same distance of 8.50 cm from the origin O. For each of the situations in the drawing, decide the magnitude of the net electric field at the..
Batteries are rated in terms of ampere-hours (A h). For example, a battery that can produce the current of 3.00 A for 5.00 h is rated at 15.00 A h. What is the total energy stored in an 8.0-V battery rated at 49.0 A h.
A high diver of mass 70 kg jumps off a board 10meters above the water. what average upward forcedid the water exert on the diver
A 68.1-kg basketball player jumps vertically and leaves the floor with a velocity of 1.92 m/s upward. (Take upward as positive and forward as positive.), What impulse does the player experience
A 65 kg hiker has fallen down a hole. One rescuer attaches a rope to the injured hiker and then a second rescuer pulls the injured hiker straight up out of the hole at a steady rate. How much force would the second rescuer need to exert on the rope t..
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