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An undiscovered planet, many light years from Earth, has one moon which has a nearly circular periodic orbit. If the distance from the center of the moon to the surface of the planet is 2.24000 x 105 kilometer and the planet has a radius of 3.550 x 103 kilometer and a mass of 5.20 x 1022 kilogram, find how long does it take the moon to make one revolution around the planet? The gravitational constant is 6.67 x 10-11.
Spider silk has a Young's modulus of 4.0x10^9 N/m^2 and can withstand stresses up to 1.4x10^9 N/m^2. If the web is 0.10 m in radius, how far down does the web extend
q1. in a car lift the output plunger has a radius of 9cm. the weight of the plunger and the car is 21600n. what is the
LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. What is the power of one laser pulse
How long would it take a 750W electric heating plate to bring one liter of water to boil from 20 degrees celcius? If energy costs $0.15/kWhr, how much does it cost to boil the water?
A car traveling at 21 runs out of gas while traveling up a 21 slope.How far up the hill will it coast before starting to roll back down.
An astronomical telescope has its two lenses spaced 75.2 cm apart. If the objective lens has a focal length of 74.5 cm, what is the magnification of this telescope? Suppose a relaxed eye.
It is possible to make a thermometer by sealing gas in a rigid container and measuring the absolute pressure. What is the temperature of this sample
A jetliner is moving at a speed of 189 m/s. The vertical component of the plane's velocity is 37.6 m/s. Determine the magnitude of the horizontal component of the plane's velocity.
A car takes a sharp turn on a road. Which of the following provides the centripetal force on the car? The weight of the car, frictional force, tangential acceleration, or gravitational force?
List and explain briefly similarities and differences between the electric force between two charges and the gravitational force between two masses.
An object 5 millimeters high is located 15 millmeters in frontof a plane mirror. How far from the mirror is the image located
particles of charge 75 microc and -85 microc are placed 0.7 m apart. if a third particle charge 48 microc is placed
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