a car travels 70 km in the 1st hour. 65 km in the second and 90 km in the third calculate the average speed of the car

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

The experiment done in lab is repeated, using a ball that has unknown mass m. you plot your data in the form of f 2 versus m/l, with f in rev/s, m in kg, and l in m. your data falls close to a straight line that has slope 3.19 m/(kg · s2). use g = 9.80 m/s2 and calculate the mass m of the ball.