Complete the sentence to describe the law of conservation of energy. The law of conservation of energy states that energy cannot be created

Two large blocks of wood are sliding toward each other on the frictionless surface of a frozen pond. Block A has mass 4.00 kg and is initially sliding east at 2.00 m/s. Block B has mass 6.00 kg and is initially sliding west at 2.50 m/s.

What is the speed of sound in dry air if the temperature is 46°C?

You may make the following measurements of an object 42kg and 22m3. What would the objects density be?

A rock at rest falls off a tall cliff and hits the valley below after 3.5s. What is the rocks velocity as it hits the ground

What is the appropriate term for the movement of the orange liquid in the lava lamp animation?

What's another name for pure substance

How could you demonstrate that visible white light is composed of many different colours?

1500 Joules of work are done lifting a 500 N weight. How high was the weight raised as a result of this work?

A pelican flies at a speed of 52 km/h for 0.25 hours. how many miles does the pelican travel?

When must batteries in an emergency locator transmitter (ELT) be replaced or recharged, if re-chargeable?