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A 2180kg satellite used in a cellular telephone network is in a circular orbit at a height of 750km above the surface of the earth.
A.) What is the gravitational force on the satellite? (in N)
B.) What fraction is this force of the satellite's weight at the surface of the earth? (in %)
A steel wire in a piano has a length of 0.60- m and a mass of 4.5 x10-3 kg. To what tension must this wire be stretched in order that the fundamental vibration correspond to middle C (fC = 261.6 Hz on the chromatic musical scale).
Gold, which has a density of 19.3 g/cm3, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber.
A balloon with a radius of 14cm and an electric charge of 3.75x10^-9 C is brought within the electric field of the larger balloon so their centres are 40cm apart. find the magnitude of the electric force exerted by this electric field on the small..
A small boat is moving at a velocity of 3.35 m/s while it is accelerated by a river current perpendicular to the initial direction of motion. If current acceleration is 0.750 m/s^2, what will the new velocity of the boat be after 33.5 s.
compute the total energy radiated by the Sun each second.
A projectile is fired at an upward angle of 45 degrees from the top of a 265 m cliff with a speed of 350 m/s. Illustrate what will be it's speed when it strikes the ground below?
Calculate the potential energy of a rock with a mass of 55 kg while sitting on a cliff that is 27 m high.
Two people are holding up the ends of a 4.75-kg wooden board that is l = 2.00 m long. A m = 3.00-kg box sits on the board, 0.50 m from one end. What forces do the two people exert.
The net force on the object is not zero in Tubby's frame, but there is an inertial frame in which net force is zero.
To focus a camera on objects at different distances, the converging lens is moved toward or away from the film, Over what distance must the lens be movable
The temperature of 3.00 mol of an ideal diatomic gas is increased by 40 degrees C without a change in pressure, How much energy is transferred to the gas as heat
An electron is trapped within a sphere whose diameter is 5.90 × 10-15 m, What is the minimum uncertainty in the electron's momentum
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