Which is a tool used by scientists to determine the composition of objects?

Which of these would be LEAST useful if one is attempting to create a electromagnet? A) battery B) iron nail C) distilled water D) coil of copper wire

A child playing downstairs is very cold in their house while a child upstairs is warm?

Evidence that supported the hypothesis of continental drift included fossils, land features and ___. A: ocean currents B:solar activity C:climate data D:presence of bacteria

How can the IMA of a first - class lever be increased? Decrease the length between the applied effort and the pivot. Increase the length between the applied effort and the pivot.

What are two results of animal regeneration?

A galilean telescope adjusted for a relaxed eye is 36cm long. If the objective lens has a focal length of 40cm, what is the magnification?

If a car goes along a straight road heading east and speeds up from 45 ft/s to 60. ft/s in 5 sec, calculate the acceleration

To generate higher profit margins, producers must work to increase their total supply. increase their total expenses. decrease their customer base. decrease their production costs

Solar energy isn't usually used as the only power source for a reason because what

What particle can be stopped by skin