An object A with a mass of 5Kg has a charge of 0.5 C. Another object B with a mass of 3.8 Kg
has a charge of 0.2 C. Both objects are 1.6
meters far from each other.
Calculate the electric force and the
gravitational force between the objects.
- Compare these forces.

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Scientific evidence tells us that the cause of earths four season is the tilt of earth as it revolves around the sun. the student is instructed to illustrate this information in a science notebook. how will the student illiterate winter in the northern hemisphere?

8. what happens to matter during a chemical reaction