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A certain satellite has a kinetic energy of 8 billion joules at perigee (closest to Earth) and 6 billion joules at apogee (farthest from Earth). As the satellite travels from apogee to perigee, how much work does the gravitational force do on it?
A particular myelinated axon has nodes spaced 0.80mm apart. The resistance between nodes is 21M?; the capacitance of each insulated segment is 1.3pF .
A 170-turn circular coil has diameter 5.05cm and resistance 1.20? . A magnetic field perpendicular to the coil is changing at 1.20T/s
A 6.89 kg box sled is coasting across frictionless ice at a speed of 2.87 m/s when a 22.3 kg package is dropped into it from above. What is the new speed of the sled?
Compute the components of the electric field at the point P shown in figure E2.9 with the y-direction upward and the z-direction out of the page. Suppose that the charge Q is uniformly distributed over the wire.
An electron moves through a uniform electric field = (2.30 + 4.90) V/m and a uniform magnetic field = 0.400 T. Determine the acceleration of the electron when it has a velocity = 12.0 m/s. ax = m/s2 ay = m/s2 az = m/s2
q1. an important news announcement is trans- mitted by radio waves to people who are 122 km away sitting next to their
At the surface of an electrically charged solid conducting sphere the electric field has a magnitude of 458 N/C and the electric potential is 164 V lower than it is infinitely far from the sphere
Your physics textbook is sliding to the right across the table. Part A Identify all forces acting on the object and draw a free-body diagram.
A gymnast of mass 52 kg is jumping on a trampoline. She jumps so that her feet reach a maximum height of 2:5 m above the trampoline and, when she lands, her feet stretch the trampoline down 75 cm. How far does the trampoline stretch when she stands o..
a particle falling under gravity is subject to a retarding force proportinal to its velocity. find its position as a
What is the maximum tension. The gastrocnemius muscle, in the back of the leg, has two portions, known as the medial and lateral heads. Assume that they attach to Achilles tendon. The cross-sectional area of each of these two muscles is typically f..
A distant galaxy emits light that has a wavelength of 499.8 nm. On earth, the wavelength of this light is measured to be 503.8 nm. Find the speed of the galaxy relative to the earth
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