What does the chemical formula CaCl2 show about the compound it represents?

It is made up of one element.

It is made up of two elements.

It is made up of three elements.

It is made up of four elements.

Your weight equals your a. mass. b. mass times the acceleration due to gravity. c. mass divided by the net force acting on you. d. mass times your speed.

Someone make me believe that light is the fastest thing known to man.

Name two instruments that are based on the law of flotation

Glenn is heating water in teakettle. The hot water at the bottom of the kettle rises. The cooler water near the top sinks and warms. Which kind of transfer of heat is this?

What is magnetism caused by? A. the motion of protons B. the motion of electrons C. the attraction between protons and electrons D. the interaction between neutrons and protons

Define the term volt.

A baseball player was hit by a baseball in the left eye and complains of double vision. What should you do? A. Restrict spinal movement B. Assess pupillary response C. Perform a detailed exam D. Apply ice to orbit

An approaching storm is moving at 15 km an hour what do you need to know to determine its velocity

How did astronomers precisely determine the length of an Astronomical Unit in the 1960s?

If a 1.50 kg mass revolves at the end of a string 0.50 m long, and its tangential speed is 6.0 m/s, calculate the centripetal force.