A man weighting 600N runs up the hill. It takes him 20s to reach top which is 15m from ground. Calculat

A) a work he has done

B) the power output his legs

How does seafloor spreading provide further evidence of continental drift

What is the temperature used for the extension step?

An atom with five protons six neutrons and five electrons has an atomic mass of

Two motorboats named Alice and Bob are moving on a lake. Given the information about their velocity vectors in each of the following situations, indicate whether their velocity vectors are equal or otherwise.

Net force is the sum of all forces acting on an object. For example, in a tug of war, when one team is pulling the rope with a force of 100 N and the other with 80 N, the net force would be 20 N at the direction of the first team (100 N - 80 N =

What is the energy equivalent of 0.026 kg?

Which of the following materials requires the most amount of heat to raise (or lower) its temperature by one degree Celsius? Assume we have the same amount of each material, 10 grams. Feel free to reference Table 14.1 in the OpenStax textbook.

If we decrease the amount of force applied to an object, and all other factors remain the same, the amount of work completed will A decrease. B increase. C increase, then decrease. D not change.

Passing an electric current through a certain substance produces oxygen and sulfur. This substance cannot be a (n)

The atomic mass of an element is A. The average mass of all the isotopes of the element B. A measure of the density of that element C. The mass of the most common isotope of that element D.