Starting with 100 grams of uranium-238, after one half life has gone by, how many grams of uranium-238 will remain?

Group of answer choices

50 g

100 g

12.5 g

25 g

Which situations would result in interference? Check all that apply. a wave bouncing off an object a wave bending as it moves through an object a wave scattering as it moves through an object a wave increasing in energy as it hits another wave a

How would you describe the interaction between opposite (N-S or S-N) magnetic pols?

How do intrusive igneous rocks differ from extrusive igneous rocks?

Identify which of the following is a complete and balanced chemical equation

What is keplers. explain every law of planetary motion.

All compounds are positively charged true or false

Jeff puts on a leather jacket over his sweater. The sweater becomes negatively charged. Which statements about Jeff's situation are true?

You hit the wall with a stick. The equal but opposite reaction is?

What happens to a light wave traveling through diamond that strikes a boundary with water at a 45 degree angle? (APEX) a. it refracts in the water, toward the boundary b. it reflects back into the diamond in the direction it was traveling from c.

Which tools would sara us to find an irregularly shaped objects mass and volume A. a meter stick, a ruler, and water B. a meter stick, a balance, and water C. a balance, water, and a ruler D. a balance, water, and a beaker