Which scientist discovered the two radioactive elements radium and polonium?

Describe the differences of the four different variables Dependent: Independent: Constant: Control: I lost my paper that had the answers! I can be really messy at times ... >-

When a gas is heated, it absorbs 196 joules of heat from the surroundings. At the same time, the gas expands, doing pressure-volume work (P · V work) on the surroundings that is equal to 322 joules.

1.) what are the following describes how an organism response to external stimuli? A.) A woman drinks water when she is thirsty B.) The pupil of the eye gets larger when exposed to dark conditions. C.) A dog eat food when it is hungry D.

A glass object receives a positive charge of + 3 nC by rubbing it with a silk cloth. In the rubbing process have protons been added to the object or have electrons been removed from it?

A car travels west for 240km in 4 hours. What is the car's velocity?

A solid spherical insulator has radius r = 2.5 cm, and carries a total positive charge q = 8 * 10-10 c distributed uniformly throughout its volume. find the magnitude of the electric field |e| at a radius of 5 cm from the origin (i. e.

What are some things cyclists do to reduce friction?

What is used to find true north on a compass? a. equator c. magnetic declination b. prime meridian d. cardinal directions

How does the sun's heat affect the humidity of a place

Which "spheres" are interacting when water evaporates from plants