Find the magnitude of the horizontal force, in n, requiered to push an object a distance of 2.00 meters in the force did 0.0430 joules of work to perform this task

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.

Infrared radiation has wavelengths that are shorter than visible light is part of the visible light spectrum has wavelengths that are longer than visible light has the same wavelengths as ultraviolet radiation