7. A projectile is launched with initial velocity of 20 m/s at 45 degrees above the horizontal. A. Find the horizontal range if this is a level projectile.

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?

According to the image below, which season is about to begin in the southern hemisphere? a. summer b. autumn c. winter d. spring

Amother used 150 watts of power to raise a 15 newton object in a time interval of 8.0 seconds. through what vertical distance was the object raised ?