Abug makes 30 jumps on the surface of the water each minute. what is the frequency of the waves he produces (in hertz)?

An alarm clock has a current of 4.5 amps and a resistance of 3.2 ohms. what is the voltage in the circuit? a.1.4 volts b.0.71 volts c.14 volts d.46 volts

How many astronauts have walked on the moon?

What are known as the properties of substances that describe a substance et does not change that substances?