Which is an example of chemical energy from batteries to electromagnetic ( light ) energy?

A. The sun
B. A flashlight
C. Solar panels
D. Oven

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight

What is the relationship between the direction of motion of the balloon and the wind currents

The gun from the crime scene shows tool marks where the serial numbers are ground off. there are also tool marks on the bullets left behind. what information can the tool marks on the bullets and gun provide about the crime? what type of evidence does this information provide, individual or class?