Is there any terminal identification mark for rheostat as positive, negative?

What is the awnser to Blank occurs when a substance changes from a liquid to a gas

What is the imperial

1. A 4 kg object is moving 15 m/s to the right. A 6 N force pushes for 5 seconds to the left. A. How much momentum does it start with? B. How much impulse acted on the object? C. What is it's change of momentum? D.

If the mass of an egg is 0.57kg and it is dropped, calculated the force using newton's 2nd law

If you are told that a material is a base, what does that tell about the pH of the material?

Rachel is making cookies. She pours 1/2 cup of oil into a bowl, followed by 1 cup of water. The oil rises to the surface of the bowl. Why?

Two particles collide, one of which was initially moving and the other initially at rest. Is it possible for both particles to be at rest after the collision?

What is the first thing to check when a refrigerator stops working?

You push down on the car to provide more friction for the tires allowing the cars tires to propel it forward 5 meters. How much work do you do?

Minerals that form from magma process will tend to form?