What’s the difference between applied and pure research

Which body is in equilibrium? (1) a satellite orbiting earth in a circular orbit (2) a ball falling freely toward the surface of earth (3) a car moving with a constant speed along a straight, level road (4) a projectile at the highest point in its trajectory

What are the dimensions of the cross section that passes through the points a, f, g, and d?

Which of the following is the largest disadvantage of about half of the electricity in the united states comes from burning