Methane needs to be liquefied under atmospheric pressure, what is the required temperature

Find the power dissipated in each resistor. Three resistors having resistances of R1 = 1.84 Ω, R2 = 2.28 Ω and R3 = 4.75 Ω respectively, are connected in series to a 28.5 V battery that has negligible internal resistance.

Three charges are fixed in place as shown. the squares in the grid have sides of length s = 0.24 m. the magnitude of q is 3 μcoulombs (1 μcoulomb = 10-6 coulombs), while the magnitude of q is 4.5 μcoulombs.

The wavelength of sound wave is 30 m. Frequency is 7 Hz. What is the wave speed

A 3 column table with 5 rows labeled table A. The first column is labeled voltage in volts with entries 1.0, 5.0, 10, 20, 50. The second column is labeled current: calculated in amps with no entries.

Which of the following best describes the fate of energy in ecosystems?

calculate the force exerted on a rocket given that the propelling gases are expelled at a rate of 1500 kg/s with a speed of 4.0x10^4 (at the moment of take off)

Which of the following statements about electrons is not true? A) Electrons orbit the nucleus rather like planets orbiting the Sun. B) Within an atom, an electron can have only particular energies.

In longitude waves, the medium moves parallel to the direction of energy transport

Thomsonâs experiment is credited with the discovery of which particle?

When you drop a pebble from height h, it reaches the ground with kinetic energy k if there is no air resistance. from what height should you drop it so it will reach the ground with twice as much kinetic energy?