The expiration date on a product refers to the last date a product should be a. sold to a customer b. used before chances of spoiling increase c. packaged and put out on the shelves d. thrown away if not eaten select the best answer from the choices provided. a

Could someone . i have tried to solve myself but my calculation is off

The rocket is fired vertically and tracked by the radar station shown. when θ reaches 66°, other corresponding measurements give the values r = 32700 ft, r¨ = 85 ft/sec2, and θ˙ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.

Aphoton is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized. very far away from the nucleus, the released electron has a velocity of 750,000 m/s. what was the wavelength of the absorbed photon?