Light travels 186 000 miles per second. how many miles dose light travel in one year

The built in flash in a compact camera is usally capable of giving correct exsposure for distance up to how many meters?

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)

What instrument is used to measure liquid volume?