Pressure Temperature (Isochoric Process) In a piston-cylinder device, 0.002 lbm of air and a fuel burn, releasing 0.45 Btu of heat at constant volume. If the pressure is 80 psi and the temperature is 300°F before burning, determine: a. The final pressure
b. The temperature.

Astronomers discover an exoplanet (a planet of a star other than the sun) that has an orbital period of 3.87 earth years in its circular orbit around its sun, which is a star with a measured mass of 3.59 x 1030 kg. find the radius of the exoplanet's orbit.

To run the physics cart, the fan speed of the cart is manipulated. this is the (blank) variable. the cart accelerates due to the speed of the fan. acceleration is therefore the (blank) variable. a “constant” is a parameter that stays the same regardless of the variables. one parameter of the cart that is held constant is the (blank) .

An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?