A rock is dropped into a well hits the water in 5 secs. if there is no air resistance, what would be the rocks final speed?

A satellite of mass m completes one revolution around the earth at a constant speed s and radius r. Which of the following statements are false? a. The centripetal force is directed towards the center and is nonzero. b.

The energy required to crack a material

two forces 5N and T act on a stone and are directed due north west and north east respectively. If the 5N force makes an angle 60° with the vertical and the weight of the stone is 4N, find the magnitude of the force T

Why is the H-R diagram useful in plotting the life cycles of stars?

If we wish to expand (x + y) 8, what is the coefficient of x 5 y 3? what is the coefficient of x 3 y 5?

Consider the incomplete equation below Superscript 4 subscript 2 upper H e plus superscript 4 subscript 2 upper H e right arrow question mark.

When the temperature of a gas decreases at constant volume, its a. pressure increases. b. mass increases. c. pressure decreases. d. particles move faster.

A 12-V battery is connected to an air-filled capacitor that consists of two parallel plates, each plate has an area of 7.60 cm2 . The separation between the plates of the capacitor is d = 0.30 cm.

Why do you believe knowing how elements and compounds react together Is essential In every day matters?

A bullet with a mass 2.25g is fired up into the air with a velocity of 187.5 m/s. What is the maximum height of the bullet