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Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. These are calledgeosynchronous orbits. The altitude of a geosynchronous orbit is 3.58×107m(?22,000miles).
A) What is the period of a satellite in a geosynchronous orbit?
B) Find the value of g at this altitude.
C) What is the apparent weight of a 2000 kg satellite in a geosynchronous orbit?
A sudden gust of wind gives the boat an acceleration a, What is the boat's speed 6.4s later when the gust subsides
A flat conductor of thickness 0.500 mm is placed in a magnetic field of 0.200 T perpendicular to the flat surface. what is the Hall voltage generated when 3.40 A flows along the conductor
Suppose you are myopic (nearsighted). You can clearly focus on objects that are as far away as 50.2 cm away. What would be the refractive power (in diopters - do not enter units) for your prescription
A rectangular barge, 4.0 m long and 1.5 m wide, floats in fresh water. (a) Find out how much deeper it floats when its load is a 380-kg horse. (b) If the barge can only be pushed 15 cm deeper into the water before water overflows to sink it, how m..
A hydrogen atom in a state having a binding energy (the energy required to remove an electron) of 0.544 eV makes a transition to a state, What is the energy of the photon emitted as a result of the transition
A clay vase on a potter's wheel experiences an angular acceleration of 7.70 rad/s2 due to the application of a 10.7-N · m net torque
if a force of 500n is needed to stretch a spring 2 cm, what force is needed to stretch 5cm
The total mass of the gas is 12.48 g. What is molecular mass of the gas? the gas expands so that the cylinder has twice the height. How much work did the gas do assuming the pressure remained constant.
A 0.840-kg block oscillates on the end of a spring whose spring constant is k= 42.0 N/m . The mass moves in a fluid which offers a resistive force F=-bv, where b = 0.640 N*s/m. What is the fractional decrease in amplitude per cycle?
A projectile is fired with an initial speed of 68.8 at an angle of 37.8 above the horizontal on a long flat firing range. Find out the maximum height reached by the projectile.
A lead ball, with an initial temperature of 25oC, is released from a height of 101.0 m. It does not bounce when it hits a hard surface. Presume all the energy of the fall goes into heating the lead. Find the temperature (in degrees C) of the ball ..
A 770 kg car moving at 21 m/s brakes to a stop. The brakes contain about 15 kg of iron, which absorbs the energy. What is the increase in temperature of the brakes.
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