Which example illustrates a chemical change?

A stone is dropped from a bridge and hits the pavement below in 2 seconds. what is the velocity of the stone when it hits the pavement

A model engine accelerated forward from rest along a straight track at 10.0 m/s2 for 3.0 seconds. It then accelerates coward at 16 m/s2 for 5.0 seconds, and finally decelerates at 12 m/s2 until it stops.

North Africa is famous for its hand-woven carpets. A-true B-false

What happens when an electron absorbs energy? A. The electron moves from a lower energy orbital to a higher energy orbital. OB. The electron falls into the nucleus. C. The electron moves from a higher energy orbital to a lower energy orbital. D.

Acceleration that causes objects to move in a circle is called

As the width of an opening in a barrier increases, how will the amount of diffraction of the planar waves change as they pass through the opening? A. It will increase. B. It will decrease. C. It will remain the same.

Two forces whose resultant is 100N, are perpendicular to each other. if one of them makes an angle of 60° with the resultant, calculate it's magnitude Calculate the absolute pressure of an ocean depth of 1200atm.

So this is a very logical question but, where did any of us come from? Do note that I am an atheist and I do not believe in God. Why well if God was real then who were his paretns. You cannot tell me that there is just a God with no parents.

Which condition is a neuron in when the outside of the neuron has a net positive charge and the inside has a net negative charge?. Threshold. Action potential. Resting potential

Use combustion by moving pistons which respond to a change in pressure