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Communications satellites are placed in a circular orbit where they stay over a fixed point on the equator. These are called geosynchronous orbits because the satellites have the same period as the earth. The radius of the earth is 6.37x10^6m and the altitude of a geosynchronous orbit is 3.58x10^7m above earths surface. Find average speed of the satellite in geosynchronous orbit. Find the magnitude of acceleration.
A 7.11-kg box is sliding across the horizontal floor of an elevator. find the kinetic frictional force that acts on the box
Calculate the magnitude of the planes acceleration. On a level road with its brakes on, a car traveling at 93 km/hr stops within 87 m when the brakes lock and the car slides.
A circuit has three resistors in series with a 36 volt source, The voltage across the third resistor is 20 V, Determine the three resistor values
Calculate the velocity of the object for an elapsed time of t=1s. Use the formula v=v0+at, these use the v0,and the value for acceleration you determined in previouse step. PROBLEM:V=Vo+at Vo is 3.8 m/s a=1.2m/s^2
Assume a light ray hits the surface of the water in a container 39 inches deep at an angle of incidence of 18 degrees. Determine the time taken for the light to hit the bottom of the container
You lay a mirror flat on the floor with one edge against a wall and aim a laser at the mirror. Find the angle of incidence of the laser ray on the mirror
Two identical +9.5uC point charges are initially 3.5cm from each other. If they are released at the same instant from rest, hoe fast will each be moving when they are very far away from each other? suppose they have identical masse of 1mg.
A 10 \rm g bullet traveling at 440m/s strikes a 12kg , 1.2-\rm m-wide door at the edge opposite the hinge. The bullet embeds itself in the door, What is the angular velocity of the door just after impact
What is the potential energy of an electron that is 59.0 cm from a charge of 33.5 nC, How much work is required to move the electron very far from the charge
A ball rolls off a platform that is 6.8 meters above the ground. The ball's horizontal velocity as it leaves the platform is 7.4 m/s.How much time does it take for the ball to hit the ground
A meterstick is at rest in an inertial frame S2. If S2 moves with a speed of 0.7c with respect to a rest frame S1, find the length of the meterstick as measured in frame S1 according to classical physics. Reply in units of m.
The drive shaft AB of an automobile is to be designed as a thin-walled tube. The engine delivers 125 kW when the shaft is turning at 1500 rev/min. Determine the minimum thickness of the shaft's wall
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