A person is running on a track. Which of the following forces propels the runner forward?

vertical cylinder with a heavy piston contains air at 300 K. The initial pressure is 2.00 3 105 Pa, and the initial volume is 0.350 m3. Take the molar mass of air as 28.9 g/mol and assume CV 5 52 R.

What number should be substituted for the question mark to balance the equation and why is that the correct number? 2C2H6 + ? O2 → 4CO2 + 6H2O + heat A. The number 5 is needed to balance the equation.

Evolutionary psychology is a relatively new approach to psychology that has been especially influenced by

Which type of reaction is shown in this energy diagram? Energy Products Activation Energy Reactants Time O A. Endothermic, because energy is absorbed from the surroundings O B. Exothermic, because energy is absorbed from the surroundings O C.

Consider five charged particles: A, B, C, D, and E. (A attracts B), (C attracts D), (B repels C), and (D repels E). If C is Positive, what is the charge of the other particles?

Some machines do not multiply the force that is applied to them

An automotive research facility is testing a new design on bumpers to determine the force at which it will break.

Gravity is greater when there is

A gas has a volume of 6 L, a temperature of 70 degrees C, and a pressure of 2 atm. If the gas is compressed to a volume of 4 L, and the pressure increases to 5 atm, what will be the new temperature of the gas?

When looking at the Impulse of an object during a collision, we often use "average force"? When an object hits something, is the force on an object changing? Explain.