All animals need oxygen. We get oxygen from the air we breathe. How do fish get theirs?

1) the strength of an electromagnet can be increased by a. replacing the iron core with a steel core b. using coils of fewer turns on the electromagnet c. passing a larger current through the electromagnet d.

How would a planet move if the sun suddenly disappeared

In what way are mercury and venus similar?

Which property of a sound wave indicates volume?

Assume the objects listed below have the same velocity. Which object has the most kinetic energy?

Six artificial satellites complete one circular orbit around a space station in the same amount of time. Each satellite has mass m and radius of orbit L.

A negative correlation between degree of wealth and likelihood of suffering from a psychological disorder would indicate that

1. What's your great idea for capturing carbon emissions from existing power plants today?

A lever allows a 35 N load to be lifted with a force of 7 N. What is the mechanical advantage of the lever?

A container of gas is at a pressure of 3.7 * 105 Pa How much work is done by the gas if its volume expands by 1.6 m3?