2. A large fish with a mass of 1-kg is in motion at 45 cm/s when it encounters a smaller fish
(m=0.25 kg) that is at rest. The large fish
swallows the smaller fish and continues in
motion at a reduced speed. Fill in the before-
and after-collision table below.
Momentum Before
Collision
Momentum After
Collision
Momentum
Change
Large Fish
Small Fish
Total
Determine the velocity of the large and the small fish after the collision. PSYW
help me

Asimply means that over time there was some sort of change.

Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.

Which type of reaction is shown in this energy diagram? energy products activation energy reactants time o a. endothermic, because energy is released to the surroundings o b. exothermic, because energy is absorbed from the surroundings o c. exothermic, because energy is released to the surroundings o d. endothermic, because energy is absorbed from the surroundings