12. A 200 kg satellite is lifted to an orbit of 2.2 x 10^4 km radius. If the
radius and the mass of the earth are 6.37 x 10^6 m and 5.98 x 10^24 kg
respectively, how much energy is required to lift the satellite ?
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Aphoton is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized. very far away from the nucleus, the released electron has a velocity of 750,000 m/s. what was the wavelength of the absorbed photon?

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.