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The Enterprise has entered a standardorbit (circular orbit 500 km above the surface)about Earth.
a. what is her constant speed?
b. what is the period of her orbit?
c. from this orbit how fast would she need to be moving to reachescape velocity?
An Escort and a Camaro traveling at right angles collide and stick together. What was the speed of the Camaro
A thin, uniform rod is hinged at its midpoint. To begin with, one half of the rod is bent upward and is perpendicular to the other half. What is the angular velocity of the straight rod
A block of mass 4.25 kg hanging from a light string is struck by a projectile of mass 250 g. The projectile sticks to the mass after collision and the two together rises a vertical distance of 12 cm. What is the velocity of the two-mass system immedi..
A flowerpot falls off a windowsill and falls past the window below. You may ignore air resistance. It takes the pot 0.360 s to passthis window, which is 2.00 m high. How far is the top of the windowbelow the windowsill from which the flowerpot fell?
two barometers are made with water and oil. the density of the oil is 900 kgm3 and that of water 1000 kgm3. if the oil
An electric motor can accelerate a Ferris wheel of moment of inertia I = 19500 kg·m2 from rest to 9.4 rev/min in 12.0 s, Determine the torque generated by the motor to bring the wheel to 9.4 rev/min
When a train's velocity is 12.0 {\rm{ m/s}} eastward, raindrops thatare falling vertically with respect to the earth make traces thatare inclined 30.0 ^\circ to the vertical on the windows ofthe train.
A coil with 25 turns of a square shape of 1.80 cm on each side. Find the magnitude and direction of the induced current in the coil
Transverse pulses travel with a speed of 220 m/s along a taut copper wire whose diameter is 1.20 mm. What is the tension in the wire
A solenoid is 1.6 m long and has 530 turns per meter. what is the cross sectional area of this solenoid if it stores .31 J of energy when it carries I=14A
A defibrillator passes a brief burst of current through the heart to restore normal beating. In one such defibrillator, What is the initial current through the patient
Compare the gravitational lens to the one found in a telescope.
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