This rocket started at rest on the luanch pad. At a certain point in the time, WATER with a mass of 2 kg was coming out of the rocket with velocity of -10 m/s. If the ROCKET has a mass of 5 kg, what is the velocity of the rocket?

When an object moves in uniform circular motion, the direction of its acceleration is a) in the same direction as its velocity vector. b) in the opposite direction of its velocity vector c) is directed toward the center of its circular path. d) is directed away from the center of its circular path. e) depends on the speed of the object.

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

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