Why metals are dense

What does it mean to have a velocity of zero?

Protons have a blank change

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Which half reaction shows both the conservation of mass and the conservation of charge?

Plants make their own carbohydrates, proteins, and fats. Where do they get the energy needed to make these substances? a carbon dioxide b the Sun c plant food d soil and water

For a vacation, you and your family fly east to west from Boston, Massachusetts, to Seattle, Washington. You notice that your flight back home to Boston is shorter than your flight to Seattle. Which phenomenon causes your flight home to be shorter?

You spy on an anchor on the bottom of a lake. What is the direction and amount of force the water exerts on it: a) zero b) up, equal to the weight of the anchor. c) up, less than the weight of the anchor d) down, equal to the weight of the anchor.

How are electromagnetic waves different from matter waves?

A dc generator is the same as a (n) a. electric motor. b. ac generator. c. armature. d. electric current.

Which of the following best describes scientific knowledge A.) Durable B.) Absolute and never changing C.) Frequently varies