The metric system is based on units of

A: twenty five

B fives

C: sixteen

D: tens

Which star can be inferred to be neared to Earth, and how do you know?

A car starts from rest at a stop sign. It accelerates at 4.0 m/s2 for 3 seconds, coasts for 2 s, and then slows down at a rate of 3.0 m/s2 for the next stop sign. How far apart are the stop signs?

Where does the energy form to give the roller coaster potential energy at the top of the first hill?

Which kind of radio waves are used by television stations to carry sound?

A rectangular barge 7 m long and 2 m wide floats in fresh water. How much will the barge sink when loaded with 600 kg of sand? Show all calculations leading to an answer.

How many DNA strands could you fit into a milimeter

A screwdriver with a 1-cm shaft and a 4-cm handle is used to tighten a screw. calculate the ideal mechanical advantage.

Plants make food through photosynthesis, a chemical reaction. What are the starting substances of the reaction?

How long will it take to travel 200,000 m traveling 100 m/s?

How does the planet Venus look to a person standing on the Earth? A. Venus looks like a small moon. B. Venus is bright like the Sun. C. Venus looks like a star. D. Venus cannot be seen from Earth.