Physics, 22.02.2021 23:10, carter4026
800 lb space probe is launched from Earth, headed for deep space.
a) List the correct equation and solve for mass given that the acceleration of gravity is 32.2 ft/s2
b) At a distance of 15,000 miles from the Earth's center, the space probe releases a payload that reduces the mass of the space probe by 1/4th (i. e., space probe is now 25% lighter in mass). By how much did the gravitational force go up or down after the payload has been released? Start with the equations from the text or class notes and solve.
Answers: 3
Physics, 22.06.2019 04:00, binodkharal2048
Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.
Answers: 2
Physics, 22.06.2019 15:20, mjwaple57
Acarpenter builds an exterior house wall with a layer of wood 2.9 cm thick on the outside and a layer of styrofoam insulation 2.3 cm thick on the inside wall surface. the wood has k=0.080w/(m⋅k), and the styrofoam has k= 0.010 w/(m⋅k). the interior surface temperature is 19.0 ∘c , and the exterior surface temperature is -15.0 ∘c . a.)what is the temperature at the plane where the wood meets the styrofoam? celsius b.)what is the rate of heat flow per square meter through this wall? /m^2
Answers: 2
800 lb space probe is launched from Earth, headed for deep space.
a) List the correct equation and...
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