Is salt an element or compound

What affect does a tripling of the net force have upon the acceleration of the object? Be quantitative

What is best to say about a runner who is running at a constant velocity? a. their acceleration is positive. b. their acceleration is negative. c. their acceleration is zero. d. their acceleration cannot be determined

I push a box with mass 10 kg across a 15 m room. If I apply a force of 20N to do this how much work is being done on the box?

Four discs are spinning at constant angular velocity. Four ideantical balls are dropped on the discs at different distances from the center. The balls are dropped from rest and stick to the disc.

As you stand on a floor, the floor exerts an upward force on you. why are you not moved upward by this force? 1. the upward force is less than your weight, so you do not move up. 2.

A man stands still on a moving walkway that is going at a speed of 0.4 m/s to the east. What is the velocity of the man according to a stationary observer?

Which, if any, of the heat engines violate (s) the second law of thermodynamics?

The ball is moving at a constant speed of 0.5 m/s for 2.3 seconds how far does it go?

Which of these is a mixture? calcium carbon dioxide salt water potassium

A train travels 80 kilometers in 2 hours, and then 79 kilometers in 4 hours. What is its average speed?