PL HELP D. umbo the circus elephant weighed 2000 n. he was coerced into jumping from a platform 25 m above the ground. he fell straight down until at the last instant, 1.0 meter above the water he put out his ears and flew off horizontally toward the crowd of shocked and delighted fans. how much kinetic energy does d. umbo have when he is 1.0 m above the ground?

How are calculation for velocity and speed different

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.

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?