A camera with a 50.0-mm focal length lens is being used to photograph a person standing 3.00 m away. if the film is 36.0 mm high, what fraction of a 1.75-m-tall person will fit on it?

Why can't conduction and convection occur in space?

What properties are in semiconductors

Charges a and b in the figure are equal. each charge exerts a force on the other of magnitude f. suppose the charge of b is increased by a factor of 4, but everything else is unchanged.

Which of the following statements are true for an adiabatic process? Check all that apply. Check all that apply. An adiabatic process is carried out at constant temperature. An adiabatic process is carried out at constant volume.

If two stars are the same distance from us and they both appear to be the same brightness, then they both have the same apparent magnitude have the same absolute magnitude both a and b

Atoms are the smallest portions of an element that retain the original characteristics of the element. True or false

Which statement is true about light when it slows down upon entering another medium A. Light bends less, and there is a greater refraction B. Light bends more, and there is a greater refraction C. light bends less, there is a less refraction D.

Why can you cross sentran type of animals

The element in an incandescent lightbulb that releases light energy is

A soda bottle is flexible enough that the volume of the bottle can change even without opening it. If you have an empty soda bottle (volume of 2.0 L) at room temperature (25 0C), what will the new volume be if you put it in your freezer (-4.0 0C) ?