My older son ben is quite a good juggler. he got in some trouble once when he left a set of clear acrylic juggling balls, like these, in the back end of our ford escort station wagon while it was parked for a long time in the sun. why do you suppose i got a little mad at him? the juggling balls

Aspring with a mass of 2 kg has a damping constant 14 kg/s. a force of 3.6 n is required to keep the spring stretched 0.3 m beyond its natural length. the spring is stretched 0.6 m beyond its natural length and then released. find the position of the mass at any time t. (assume that movement to the right is the positive x-direction and the spring is attached to a wall at the left end.)

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

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.