A substance made up of 2 or more elements is called

Dose sound travel faster in a warm room or a cold room? explain your answer

A copper piece cannot be made a magnet ... Why?

When was last total solar eclipse in minnesota?

You ride your bike for a distance of 30 km. you travel at a speed of 0.75 km/minute. how many minutes does it take?

What are the differences between glaciers and geysers

The contamination that results from the spread of bacteria from meat to vegetables is called

A rock has a mass of 5 kg on the moon. What is the mass of the rock on the earth

A battery applies 45 volts to a circuit, while an ammeter reads 10 ma. later, the ammeter reading drops to 7 ma. assuming the resistance has not changed, the voltage must have

A 150-kg object takes 1.5 minutes to travel a 2,500 - meter straight path. It begins the trip traveling 120 m/s and decelerates to a velocity of 20 m/s. What is the acceleration?

Lava is rock that has undergone a physical change and has liquefied. What is known about this change?