Which describes the correct energy conversion when a solar cell is used to light a street lamp?

solar to light

solar to light and heat

solar to electric to light and heat

heat to electric to light

What occurs in an updraft

Why would it be cooler if you climb to a higher elevation in a desert

A person stands 6.00 m from a speaker, and 8.00 m from an identical speaker. What is the wavelength of the first (n=1) interference maximum (destructive)

This is the movement of soil, mud and rock due to the downward movement of wind, water or ice.

How do you reduce friction

Two tiny beads are 25 cm apart with no other charges or fields present. Bead A carries 10 µC of charge and bead B carries 1 µC. Which one of the following statements is true about the magnitudes of the electric forces on these beads

A ball is thrown straight up at 20 m. What is the balls velocity as it hits the ground?

Block 1 and Block 2 have the same mass, m, and are released from the top of two inclined planes of the same height making 30 degree and 60 degree angles with the horizontal direction, respectively.

Water waves change direction when they encounter water of different depths and begin to move at different wave speeds. This is called A. reflection B. constructive interference C. the Doppler effect D. refraction

Along with an alpha particle what other product is produced in the alpha decay of americium-241