G = Gravity/ Always (10) H = Height V=Speed / Velocity V=Distance/Time PE: M G * H KE: 0.5 *M 1. A person with a mass of 50 Kg, Traveled a distance of 50m in 50sec. What is the velocity or speed of this person. Please help

Which type of electromagnetic waves are dangerous enough to be used to kill cancerous cells? (a)gamma rays (b)visible light (c)infrared light (d)microwaves

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?

Difference between series and parallel circuits