A mole of hydrogen gas with a volume of 0.080 m³ is compressed adiabatically to half of its original volume. If the initial average kinetic energy per hydrogen molecule is 1.38x10^-20 J, what are the initial and the final pressure of the hydrogen gas? Assume that hydrogen is a diatomic gas.

Describe the path of the electric current through a circuit?

When you drop a pebble from height a it reaches the ground with speed v if there is no air resistance. from what height should you drop it so it will reach the ground with three times the speed? (a) 9m (b) 3m (c) 6m (d) 18m

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c.the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors