Which has more significant figures 3.456 or 2.0002?

A motor has the electrical energy equivalent to 400. joules of work. It can lift a 5.0 kg mass 2.0 meters. Calculate the work done by the motor.

9. How are the fossils in question 8 formed?

During a softball game, a shortstop catches a ground ball. The action force is the ball pushing on the glove. What is the reaction force?

What happens to the current in a device is the resistance is decreased but the voltage stays the same?

Yami pours powdered cocoa mix into milk and stirs it. Then she microwaves the mixture for three minutes. When she takes the cup out, the handle is very warm. Steam rises from the cup, so she blows it before taking a sip.

Which equations represent the relationship between wavelength and frequency for a sound wave? Check all that apply. v = lambdaf A = vf f = v A = StartFraction v over f EndFraction. A = StartFraction f over v EndFraction.

Objects that are closer together have a stronger force of gravity between them. True False

What is table salt (NaCl) formed by? The combination of two nonmetals. The splitting apart of a metal and a nonmetal. The combination of a metal and a nonmetal. The combination of two metals.

How does charging by conduction work?

Explain how Copernicus concluded that stars were farther away than planets. Draw a diagram showing how this principle applies to another example.