What is the mathematical equation for calculating the heat needed to change the temperature of a substance? Identify each variable and it units.

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

Why are graphs useful when interpreting data

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.