Is chalk a compound or a element

You wash the dishes. when you let the water down the drain, where is the water flowing the fastest?

A soccer ball is kicked into the air from level ground with an initial speed of 20 m/s and returns to ground level at which angle above the horizontal should the ball be kicked in order for the ball to travel the greatest total horizontal distance

The table shows the decay in a 59 g sample of bismuth 212 overtime. if bismuth 212 has a half-life of 60.5 seconds, how many grams of the sample will be left after 121 seconds? A. 3.69 g B. 7.38 g C. 14.75 g D. 29.5 g

A block of aluminum had a volume of 17.0 mL and a mass of 45.9g. What is it's density?

You have a potential difference of 8 v. how much work is done to transfer 0.32 c of charge through it? answer in units of j.

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.