Compare the momentums of a 50 kg dolphin swimming at 16.4 m/s and a 4100 kg elephant walking 0.20 m/s?

Sally goes on a hike. The distance she walks compared to the amount of time she walks is shown on the graph. Which statement is not true? A. The longer Sally walks, the farther she travels. B. Sally does not walk from the 6th to the 7th hour. C.

A constant voltage is applied across a circuit. If the resistance in the circuit is doubled, what is the effect on the power dissipated by the circuit? A) The power dissipated is quadrupled B) The power dissipated is reduced by a factor of 2.

If a paper is blue what color of light bounces off the paper

What is carnot engine. express the relation for its efficiency?

A cinder block is sitting on a platform 20 m high. it weighs 7.9 the block has potential energy. calculate it.

Which of the following jobs does not require good swimming ability

An object has an emissivity of 0.725. At temperature T, it radicates heat at a rate of 10 W. What is its rate of heat radiation at temperature 2 T

Which of the following is an instance of persuasive speaking? a. a coach reviewing the offensive plays for next week's game b. a lawyer explaining the details of a plea bargaining agreement to her client. c.

What is needed to support life

What property indicates a star's temperature? A size B color C composition D brightness i forgot lol