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A satellite of mass 190 kg is placed into Earth orbit at a height of 900 km above the surface.
Starting from the satellite on the Earth's surface, what is the minimum energy input necessary to place this satellite in orbit? Ignore air resistance but include the effect of the planet's daily rotation.
On a cold day, Ming rubs her hands together to warm them up. She presses her hands together with a force of 4.1 N. by how much has the internal energy of her hands increased
A neutron star has a mass of 2.0*10^30 kg (about the mass of our sun) and a radius of 5.2*10^3 m (about the height of a good-sized mountain). assume an object falls from rest near the surface of such a sta
A compound microscope has a barrel whose length is 18.3 cm and an eyepiece whose focal length is 1.2 cm. What focal length must the objective have so the angular magnification of the microscope is -270
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a particular ideal solenoid has 1200 turnsm a radius of 10 cm and a current of 4.0 a. an electron is fired from the
A bowling ball 26 cm in diameter is slid down an alley with which it has a coefficient of sliding friction of µ = 0.55. The ball has an initial velocity of 9 m/s and no rotation. g = 9.81 m/s2. Note: For a sphere Icm = (2/5)mr2.
A uniform 34.5-kg beam of length = 4.95 m is supported by a vertical rope located d = 1.20 m from its left end, Find the force that the column exerts on the right end of the beam
in a 10ft^2 room wiyh no window and no doors . The air in the room is 79% N(sub2) and 21% O(sub2). What is the weight of the air
The plates of a parallel-plate capacitor are 3.50mmapart, and each carries a charge of magnitude 75.0nC, What is the area of each plate
A skier traveling 11.0 m/s reaches the foot of a steady upward 19 degree incline and glides 16m up along this slope before coming to rest. compute the average coefficient of friction
A grappling hook, attached to a 1.5-m rope, is whirled in acircle that lies in the vertical plane. In the absence of airresistance, to what maximum height can the hook be cast
You are watching an object that is moving in SHM. How much farther from this point will the object move before it stops momentarily and then starts to move back to the left
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