As water is heated by the sun, it becomes less dense and rises. What causes the decrease in the density of warming water?

A very elastic rubber ball is dropped from a certain height and hits the floor with a downward speed v. Since it is so elastic, the ball bounces back with the same speed v going upward.

A car slows to a stop in 5 seconds. if it was going 80 km/hr find the acceleration.

What is the total resistance of five 10 ohms resistors in life parallel ... a) 500 ohms B) 2 ohms C) 10 ohms D) 50 ohms?

Which reaction is a single replacement reaction? A. 2H2+O2-2H20 B. 2H202-2H20+O2 C. KOH+HCI+H2O D. Cu + 2AgNO3 - 2Ag + Cu (NO3) 2

How can you use a clock to find a time interval? and what is time interval?

Which of the following is a false statement about dispersion forces? View Available Hint (s) Which of the following is a false statement about dispersion forces?

Which choice defines AC and DC correctly? In AC, electrons moving in one direction. In DC, they move in one direction and then in the other direction. In DC, electrons move in only one direction.

Why a c is advantageable than dc

Which is the larger change in temperature 1 Kelvin or 1 degree Celsius

When water is in a container the surface of the water is curved what the curve called?