If a substance cannot be broken down chemically into smaller substances it is

A) An element

B) a compound

C) an atom

D) a molecule

Which object moves in simple harmonic motion?/ a stretched rubber band with an mass b rolling ball going down a hill c moving car d orbiting satellite

Two soccer players, Mia and Alice, are running as Alice passes the ball to Mia. Mia is running due north with a speed of 6.00 m/s. The velocity of the ball relative to Mia is 5.00 m/s in a direction 30.0 east of south.

George walks to a friend's house. He walks 750 meters North then realizes he walked too far. He turns around and walks 250 meters south. The entire walk takes him 13 seconds. What is his speed per second?

A wire 2.80 m in length carries a current of 4.00 A in a region where a uniform magnetic field has a magnitude of 0.250 T.

The energy required to crack a material

Which of the following decreases the dissolving rate of a solid in water?

Why might a plant that normally grows in one environment not grow well in a different environment?

Cara menghitung daya dorong

Which rock is made mostly of dark, fine-grained silicate minerals, chiefly plagioclase feldspar and pyroxene, and magnetite?

What does the atomic number tell us about an atom of a certain element?