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Determine the change in gravitational potential energy of a 70-kg skier-Earth system when the skier goes down this slope. A.) Determine the change in gravitational potential energy of a 70-kg skier-Earth system when the skier goes down this slope. B.) If 20% of the gravitational potential energy change is converted into kinetic energy, how fast is the skier traveling at the bottom of the slope?
A 1.5-H inductor is connected in series with a 200-Ω resistor through a 15-V dc power supply and a switch, what is the maximum energy stored by the inductor
Suppose you have two boxes that conceal what is inside, althougheach has two wires coming out of the interior. You have atyour disposal some batteries, wire and identical flash tlight bulbs.
Two scales on a voltmeter measure voltages up to 20.0 V and 28.0 V, respectively. Determine the coil resistance
A wire coil is connected to a DC power supply of 12.0 volts. The current in the coil is measured to be 375 mA. What is the resistance of the wire coil
q1. vector a points in the negative y direction and has a magnitude of 3 units. vector b has three times the magnitude
As a projectile moves in its path, is there any point along the path where the velocity and acceleration vectors are (a) perpendicular to each other? (b) Parallel to each other?
An astronaut's normal weight it 600 newtons. How much would she weigh while orbiting in a satellite at 12,000 kilometers [two earth radii] above the surface of Earth.
A sample containing beryllium (atomic mass 9 u), aluminum (27 u), and an unknown element is placed in a mass spectrometer, What is the mass of the unknown element
Illustrate what are his weight and mass on earth and in interplanetary space where there are no nearby planetary objects?
A professor walks in a long hall carrying a vibrating 512Hz tuning fork. The end of the hall is closed so that sound reflects from it. The student hears 4 beats per second. How fast is the student walking and in what direction.
If you throw a .038 kg ball at a speed of 10.9 m/s and at an angle of 43.5 above the horizontal from a 14.8m high building, what will its kinetic energy be when it hits the ground
A toaster oven has a equivalent resistance of 10.5 ?. When pluged in a 120 V circuit, (Assume direct current) , What's the power of the oven
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