An arc welder provides 250A of current when operating with a voltage of 40V. What is the power required by this welder? Explain your answer.

What factors does the speed of atoms depend on?

What can cause damge days after a large earthquake?

A change in color during a reaction is often a sign that a chemical change has occurred.

What does a wave do that is so important?

Explain how storm surges can affect human life in Florida. Use complete sentences.

An experiment is performed to obtain the value of a physical property. If the true (i. e., correct) value of the property is 50 and the measured (i. e., experimental) value is 32, the percent error of the experimental result is:

White moths were found in huge numbers in the city of Birmingham. These moths could be easily camouflaged by the trees. Because of sudden industrial development, the trees in the city were covered with soot.

What two factors determine how fast weathering occurs

A sound that's produced by a single wave at a constant frequency and with no overtones is called

Which of the following is ignored when determining the relative mass of atoms? protons nucleus electrons. neutrons