Asample of gas in a balloon has an initial temperature of 43 ∘c and a volume of 1280 l . if the temperature changes to 88 ∘c , and there is no change of pressure or amount of gas, what is the new volume, v2, of the gas? express the volume numerically in liters.

The current in a hair dryer measures 11 amps. the resistance of the hair dryer is 12 ohms. what is the voltage?unit:

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.