Two rocks are thrown horizontally at the same time and from the same height. if the initial speeds of rocks a and b are 10 m/s and 15 m/s, respectively, which statement below is true? you can ignore air friction a) rock a will hit the ground before rock b. b) rock b will hit the ground before rock a. c) rock a and rock b will hit the ground at the same time. d) the answer will depend on the masses of rock a and rock b

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.