why does carrying furniture up four flights of stairs require twice as much work as caring furniture up two flights of stairs

A fuse is used to protect electric circuits from too much electricity running through them. How should a fuse be hooked up with the components it is designed to protect? Justify your answer.

The period of rotation of Mercury in hours is 1407.6 hr. Given that Mereury has a radius of 2.4 X 10^6 m at its equator, what is the linear velocity (in m/s) at Venus's surface? (Enter the magnitude of the linear velocity at the equator.)

How does resistant affect the current in a cirtuit

How did later discoveries change the model of Mendeleev's periodic table to what we accept today? A) Mendeleev's periodic table was labelled as inaccurate and his founding principles were scrapped.

Complete this equation that represents the process of nuclear fusion. Superscript 226 Subscript 88 Baseline R a yields Superscript A Subscript B Baseline R n + Superscript 4 Subscript 2 Baseline H e A: B:

Which of the following is evidence that groundwater causes erosion and deposition?

Which project involved the goal of orbiting a manned spacecraft around earth? A. Mercury B. Apollo C. Gemini D. Skylab

Which type of listening response includes the use of head nods, facial expressions, and short utterances such as "uh-huh" that signal your interest to the speaker?

During eccentric muscle contraction, the muscle

What is a string theory?