What kind of electromagnetic waves do computers and microwave ovens produce?

Before radiant energy can be converted to thermal energy, it must be changed to what

The diagram shows the electric field around two charged objects. What is the best conclusion about the charges that can be made based on the diagram? Y is negative, and Z is positive. Y is negative, and Z is negative.

After a tsunami warning is issued when is it safe to return home

A 1.695 kg block of lead is 10 cm long, 5 cm high, and 30mm wide. Calculate the density of the lead

The apparent reversal of motion of planets against the backdrop of fixed stars is called

In a class debate, a student argues that the big bang theory is "just a theory." What is most likely to be this student's understanding of scientific theories? A. Theories agree with observations of nature. B. Theories are just guesses. C.

Look at the advertisement. A poster that reads, "There's more to resistors than resistance. If you're really serious about cost, be serious about quality." with tools. Which persuasive media technique is used in this advertisement

If you were told an atom was an ion, you would know the atom must have a

When a potential difference of 13 V is placed across a resistor, the current in the resistor is 1.4 a. What is the resistance of the resistor?

Person with a mass of50 kg jumps up from the earth with an acceleration of 20 newtons. what is his acceleration?