Oil spills in bodies of water (a) have a little effect on water organisms. (b) only affect life at the bottom of the water. (c) can severely affect the waterfowl and other organisms living on the surface of the water. (d) are not affected by tides. i need this answer to be correct it’s for an exam : ) .

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.

Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction. true or false?