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Mars has two small moons orbiting around it (Deimos and Phobos). Both are tiny and irregular in shape and believed to be captured asteroids. Determine the approximate orbital period of Deimos?
Two charges are placed on the x axis
in a region of space there is an electric field e that is in the z-direction and that has magnitude e 747 ncmx. find
question1six vectors a to f have the magnitudes and directions. part a ranks the vector combinations on the basis of
A horse walks in a 24 ft diameter circle, making 144 trips around the circle in one hour. Using the currently accepted value of 746 watts for 1 horsepower, calculate the force in pounds with which the horse must have been pulling.
A Styrofoam box has a surface area of 0.79 m2 and a wall thickness of 2.0 cm. determine the thermal conductivity of the Styrofoam.
A heater coil connected to a 240-Vrms ac line has a resistance of 45. what is the average power used? What is the maximum value of the instantaneous power?
The secondary voltage of an ignition trans- former in a furnace is 14 kV. When the primary operates at an rms voltage of 103 V, What is the impedance in the sencondary
An object is oscilliating on a spring with a period of 4.60 s . At time t= 0.00 s the object has zero speed and is at x = 8.30 cm . What is the acceleration of the object at t= 2.50 s ?
An electric fan is turned off, and its angular velocity decreases uniformly from 500 rev/min to 200 rev/min in 4.00 second. determine the number of revolutions made by the motor in the 4.00 s interval
A 21.0 kg box is released on a37.0° incline and accelerates down theincline at 0.273 m/s2. Find thefriction force impeding its motion. How large is the coefficient of friction
Water runs out of a horizontal drainpipe at the rate of 120 litersper minute. It falls 3.20m to the ground. what average force does it exert on the ground
q1. a 1000 kg car travelling at a speed of 20 ms skids to a halt on wet concrete where fk 0.50. how long is the cars
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