If a 60 kg woman, runs up a flight of stairs having a total rise of 4.0m in a time of 4.2s. What average power did she supply?

A gas of helium atoms at 273 k is in a cubical container with 25.0 cm on a side. (a) what is the minimum uncertainty in momentum components of helium atoms? (b) what is the minimum uncertainty in velocity components?

A flat sheet of paper of area 0.250 m2 is oriented so that the normal to the sheet is at an angle of 60 to a uniform electric field of magnitude 14 N>C. (a) Find the magnitude of the electric flux through the sheet.

What is the energy transformation of toasting bread? 1. electrical energy to thermal energy 2. mechanical energy to solar energy 3. light energy to potential energy 4. kinetic energy to nuclear energy

Which of the following is a characteristic of science? Testing many variables at once Each scientist gets unique results when doing the same experiment Using controlled conditions Starting with the answer that you want

The space around electric charges, where electric forces can act, is called a what

How is Electric current able to flow?

In a series circuit, loads which have the same voltage dropped across them will have?.

When a brick is dropped from the roof of a house, it lands on the ground with a speed v. What will the speed at ground level be for an identical brick dropped from a roof twice as high as the first one?

The scientific method begins with recognizing a problem. The recognized problem in this scenario is, "Why is the printer in the office not working?" Choose the hypotheses that are testable and from which an experiment can be formed.

The correctly balanced equation for H2O2 → H2O + O2 is