Jill travels to vacation. She drove 389 miles and it took her 5.5 hours. What was the unit rate of her average speed?

What statements accurately describe atoms

Abug is 12 cm from the center of a turntable that is rotating with a frequency of 45 rev/min . what minimum coefficient friction is required so that the bug stays on the turntable?

Exercise 2. find the wavelength of a photon emitted when an electron jumps from the n = 3 energy level down to the n = 2 energy level. where is this photon in the electromagnetic spectrum?