What was the first experiment to show that light is a wave?

A plane flying due east at 395 km/h, is hit by wind blowing at 55 km/h toward the west. what is the resultant velocity of the plane?

An object carries a charge of - 6.1 µC, while another carries a charge of - 2.0 µC. How many electrons must be transferred from the first to the second object so that both objects have the same charge?

What does the star release, and in what form do we see it?

Twin brothers, Andy and Brian, can mow their grandparents lawn together in 1212 minutes. Brian would mow the lawn by himself in 1010 minutes more than it would take Andy. How long would it take each person to mow the lawn alone?

If two plates diverge at a rate of 1.3 cm/year, howmuch farther apart will the plates be after 200 millionyears?

A lizard accelerates from 2 m/s to 10 m/s in 4 seconds. what is the lizard average acceleration

Explain the difference between balanced forces and action and reaction forces.

Describe and apply Newton's Three Laws

If you do 1000j of work on a system and remove 500j of heat from it, what is the change in its internal energy

Two children stretch a jump rope between them and send wave pulses back and forth on it. The rope is 4.5 m long, its mass is 0.42 kg, and the force exerted on it by the children is 71 N.