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A satellite has a mass of 7930 kg and is in a circular orbit9.88x106 m above the surface of a planet. The periodof the orbit is 16.1 hours. The radius of the planet is 3.16x106 m. What is the true weight of the satellite when itis at rest on the planet's surface?
A rod flies with constant velocity past a mark which is stationary in the K frame. In the K frame, it takes the rod Deltat = 20 ns to fly pass the mark. In the K' frame fixed to the rod, the mark moves past the rod in Deltat' = 25 ns. Find (a) the ve..
A constant horizontal force a pushes a kg FedEx package across a frictionless floor on which an xy coordinate system has been drawn. package's x and y velocity components versus time t.
Sheena can row a boat at 2.97 mi/h in still water. She needs to cross a river that is 1.24 mi wide with a current flowing at 1.67 mi/h. How long does it take her to cross the river
light of wavelength 455 nm is incident on a narrow slit. the diffraction pattern is viewed on a screen 3.11 m from the
The maximum current an ac device draws is 1.80 A when connected to a 120 V outlet. What is the effective current of the device
Four objects are situated along the y axis as follows: a 1.94-kg object is at +2.98 m, Where is the center of mass of these objects
A snake is sunning itself on a rock. If the snake is 0.4 m long, what is the approximate amount of radiation it absorbs from the Sun in 15 min, Estimate the temperature in the Sun on the rock
x-rays are scattered from a target at an angle of 48.5deg with the direction of the incident beam. find the wavelength
q1. the temperature of the glass surface of a 30 w light bulb is 75degc when the room temperature is 10degc. estimate
If the piston has a cross sectional area of 0.0100 m^2 and negligible mass, how high would it rise when the temperature is raised to 250°C.
Two conductors made of the same material are connected across the same potential difference. Conductor A has twice the diameter and twice the length of conductor B. What is the ratio of the power delivered to A and to the power delivered to B?
in a proton accelerator a moving proton hits a solid target and stops. as a result an electron-positron pair is created
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