A robot probe drops a camera off the rim of a 239 m high cliff on Mars, where the free-fall acceleration is -3.7m/s^2. Find the time required for it to hit the ground.

When someone slams her books on a table the kinect energy is transferred into vibrations that travel to your ears as sound waves which statement describes the movement of those waves

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

Calculate the numbers of photons having a wavelength of 10.0 mm required to produce 1.0 kj of energycalculate the numbers of photons having a wavelength of 10.0 mm required to produce 1.0 kj of energy