Determine work should the total external force
A 6100-kg satellite is in a circular earth orbit that has a radius of 2.7x10^7 m. A net external force must act on the satellite to make it change to a circular orbit that has a radius of 5.6x10^6 m. What work must the net external force do?
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The two resistors are connected in parallel across a power supply, and the current through the 9.0 ohm resistor is found to be 0.25 A. find the voltage setting of the power supply?
A storage tank at STP contains 19.1 kg of nitrogen What is the volume of the tank? What is the pressure if an additional 15.7kg of nitrogen is added without changing the temperature?
Calculate the horizontal distance the ball would travel if the same spring were aimed 26.0o from the horizontal.
A grinding wheel is in the form of a uniform solid disk of radius 6.96 cm and mass 2.04 kg. It starts from rest and accelerates uniformly under the action of the constant torque of 0.610 N · m that the motor exerts on the wheel. (a) How lon
At a distance of 11 km, a 170 Hz horn, assumed to be a point source, is barely audible. At what distance would it begin to cause pain?
The Toyota moves at a speed c=3 with respect to a xed radar gun. In the Toyota's rest frame, both cars have the same length. What is the speed v of the Bentley with respect to the radar gun? show your work please.
A diver springs upward with an initial speed of 2.65 m/s from a 3.0-m board. (a) Find the velocity with which he strikes the water.
Find the angle between the position vectors to the points (3, -4, 0) and (-2, 1, 0), and find the direction cosines of a vector perpendicular to both.
The rocket attains its launch speed in a negligibly short period of time, after which its engines shut down and the rocket coasts. By how much does the rocket clear the top of the wall?
Rotation in the Milky Way: as I mentioned the rotation speed of the sun around the Milky Way center is approximately 200 km/s (actually to be precise, it's 220 km/s), and that it takes the sun around 200 million years to orbit once around center o
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