Why is it that the properties of pure substance do not vary from sample to sample

After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 50.0 cm. She finds that the pendulum makes 100 complete swings in 136 s. What is the value of g on this planet?

A 64.5 kg person steps off a 129 kg rowboat with a force of 34.0 N. What is the force that is applied to the person by the rowboat?

a baseball player swings a bat and applies an average force of 75 N to a 30 gram baseball for 0.10 seconds. determine the impulse experienced by the baseball

How can I use the words hydrate, compound, and water in a sentence

Which statement about the properties of matter is true? * 25* A. It is possible for matter to have different physical properties but the same chemical properties. B. It is possible for matter to have only chemical properties. C.

Describe the position of earth moon and sun during a solar eclipse

What is an output force? a. the force a person applies to a simple machine b. the force a simple machine applies to an object c. the net force on a system d. the applied force on a system

Would iron and carbon from metallic bonds

How many joules does a shortbread cookie have

What happens to frequency when an object is moving towards you?