The pressure of a hydraulic fluid in a cylinder is 627 Pa. The area of a piston inside the cylinder is 0.900 m2. Calculate the force that is exerted on the piston using the formula for calculating force. • 697 N
• 626 N
• 628 N
• 564 N

What is the equation for electrical work?

Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?

Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.