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Two satelities S1 and S2 revolve round a planet in coplanar circular orbits in the same sense. Their periods of revoluions are 1h and 8h respectively. The radius of the orbit of S1 is 10^4km. When S2 is closed to S1 FIND ;
(i) speed of S2 relative to S1 and
(ii) angular speed of S2 actually observed by an astronaut in S1 ?
A carpenter is driving a nail into a board. The 1.25 kg hammer moves at 8.85 m/s when it strikes the nail. What is the change in length of the nail
What is the smallest distance between the speakers for which the interference of the sound waves is destructive
a student builds and calibrates an accelerometer, which she uses to determine the speed of her car around a certain unbanked highway curve. what is the radius of the curve
The current through B is found to be 1.0 A. When the two resistors are connected in series to the 9.0 V battery, a voltmeter connected across resistor A measures a voltage of 2.0 V. Find the resistances A and B.
A diver springs upward with an initial speed of 1.9 m/s from a 4.0-m board. What is the highest point he reaches above the water
The coefficient of kinetic friction between the box and the surface of the incline is 0.2. The initial speed of the box at the bottom of the incline is 2 m/s. How far does the box travel along the incline before coming to rest
A hydrogen atom is in the ground state. It absorbs energy and makes a transition to the n = 4 excited state. determine the photon wavelengths of the first transitions
A magnifying glass uses a converging lens with a focal length of 14.5 cm. It produces a virtual, How far is the object from the lens
Three point charges, +q, +Q and -Q, are placed at the corners of anequilateral triangle and no other charged objects are nearby. What is the direction of the net force on charge +qdue to the other two charges?
a rock is tossed off the top of a cliff of height 34.5m. its initial speed is 29.1m/s and the launch angle is 30.2degrees with respect to the horizontal. what is the speed with which the rock hits the ground
What thickness of board (calculated to 0.1 cm) would it take to stop the bullet, suppose that the acceleration through all boards is the same.
Consider an RLC circuit with R = 150? , L = 597mH , and C = 0.260?F, At what frequency is this circuit in resonance
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