About 800 billion years ago there was series of ice ages, why?

A body of mass 20 kg is kept in equilibrium of two forces. If one of the ropes pull the body in a horizontal direction and the other in a direction of 60 degree with the vertical, calculate the tension in each rope.

Which of these subshell designations are possible which are impossible? 1) 1d 2) 1p 3) 1f 4) 2p 5) 3s

What is the asthenosphere made out of? a. Solid Rock b. Liquid Rock c. Liquid Iron d. Solid Iron

A student walks 30 feet to the right. Then walks 10 feet to the left. Then walks 20 feet to the right. It took 20 seconds to do all of this. What was the students velocity? (use ft/s and direction as unit)

Two charged objects, A and B, exert an electric force on each other. What happens if the distance between them is increased?

The forklift exerts a 300.0 N force on the box and moves it 15.0 m into the air. How much work does the forklift do? A. 500 J B. 1.50 * 10^3 J C. 4.50 * 10^3 J D. 0.00 J

Why the room gets hot even we open the door of refrigerator?

What effect will taking a dose of antibiotics that is too small have on the bacteria you are trying to destroy? a. all of the bacteria will pass on their genes b. none of the bacteria will pass on their genes c.

Multiply 0.00032 cm by 4.02 cm and express the answer in scientific notation

Apply why does a box on the seat of a car slide around on the seat when the car speeds up slows down or turns a corner?