Why is it good for scientist to be skeptical

Is it possible for two different atoms of carbon to have different numbers of neutrons in their nuclei? Explain.

There are roughly 3 * 10-6 g of uranium per liter of seawater. Assuming there are 3.535 * 1020 gallons of seawater on earth, calculate the mass of uranium that can be extracted from seawater.

What type of waves can travel through a medium

Which law states that a charge cannot be created or destroyed

How do people use telescopes to the underlying scientific ideas?

across a rough, horizontal surface. The chair's mass is 18.8 kg. The force you exert on the chair is 165 N directed 26 degrees below the horizontal. While you slide the chair a distance of 6.00 m, the chair's speed changes from 1.30 m/s to 2.50 m/s.

A 5nC charge is placed at the origin of our coordinate system. There are three other charges; 5C located 3m in the positive i direction, 2C located 2m in the negative i direction, and - 4C located 5m in the positive j direction.

Suppose a force of 100 n is used to push an object a distant of 5.0 m in 15 seconds. Find the work done and the power done in this situation.

How do organisms use cellular respiration and fermentation to survive?

You decide to redo Galileo's inclined plane experiment. On the shelf in your pantry you find two cans of soup that are equal in size and weight. One is chicken broth and the other is cream of mushroom. You decide to use these for the experiment.