Consider a compact car that is being driven at 111 km/h.
The acceleration of gravity is 9.8 m/s^2
From what height would the car have to be
dropped to have the same kinetic energy?
Answer in units of m.

The density of a substance is 4.0 g/cm3. if a sample of the substance has a volume of 25 cm3 then what is the mass

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt