In nature, what gets energy from nuclear fusion?

An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 26 cm horizontally and 19 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)

Ashley swam 20 miles in .5 hours and 40 miles in an hour is it a proportional?

What would be different if joe was moving a book instead of a file cabinet