Two identical rocks are dropped from different heights. The higher one starts out four times as high as the lower one. How much faster is the higher one going just before they hit?

Overgrazing, deforestation,&poor irrigation & cultivation all contribute significantly to

A 500kg wagon is pushed against a wall with a spring between the wall and the wagon. The spring has a stiffness coefficient of 300 N/m. If the spring is compressed a distance of.

What is the mass of an object if a force of 34 N produces an acceleration of 4 m/s/s?

When you raise the temperature of air, the molecules move farther apart from each other. This lowers the density of the warm air. What will happen to this warm air? (In an ideal gas, increasing the temperature of the gas also increases its volume.)

Predict whether or not a Mg2 molecule is stable. a. Mg2 is stable with a bond order of 2b. Mg2 is stable with a bond order of 0.5c. Mg2 is stable with a bond order of 1d. Mg2 is not stable

An 8 kilogram bowling ball is rolling in a straight line toward you. if its momentum is 16 kg * m/s, how fast is it traveling?

Explain why a moving object can be in equilibrium

Design an investigation to compare the durability of the three different brands

The surface area of the skin of a person who is 70 inches tall and weighs w pounds can be estimated by s (w) equals=342 w superscript 0.425342w0.425 , where s is in square inches.

The train speeds passed Holly at 70 km/h north ward. This spider crawls past lukes foot in the same direction at 30 m/h. What is the velocity of the spider relative to Holly?