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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A parallel-plate capacitor with area0.300m2and plate separation of2.00mm is connected to a 21.00-V battery. (a) What is the capacitance? (b) How much charge is stored on the plates?
A charge of -3.89C is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass (radius = 0.0809 m). The charges on the circle are -4.74C at the position due north and +7.12C at the position due east. What is
(a) How much work is done on the weight to lift it one time? (b) If you do 3 sets of 10 in a day, what total energy do you expend on lifting, assuming a typical efficiency for energy use by the body? (c) How many 400 Calorie jelly donuts can you e
If the center of mass of this system moves to the right with a speed 4/5 v0, what is the mass of the cart on the right?
In order to improve sharpness of pictures, photographers sometimes decrease lens's aperture (i.e. cover part of the lens). Explain why this procedure leads to a sharper image.
A camera with a telephoto lens (f = 220.0mm) is to be focused on an object located first at a distance of 3.5 m and then at 45.0m. Over what distance must the lens be movable?
A string with a mass of 27 g and a length of 2 m is stretched under a tension of 68 N. How much power must be supplied to the string to generate a traveling wave that has a frequency of 48 Hz and an amplitude of 4 cm?
A thunderstorm drops half an inch of rain (which is about 1.27cm) on Chicago which covers are area of about 228 square miles (1 mile = 1.609 km) If a typical raindrop is considered to be a sphere with a diameter of 4millimeters, what is the order
Use ray tracing to determine the location of the image. Use ray tracing to determine the height of the image.
Consider a point P on the viewing screen of a double-slit interference experiment. This point is 45% of the way from the center of the 2nd bright fringe to the center of the 3rd bright fringe. If the wavelength of the light is 660nm , what is the
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