2. A cube has a side of 5 cm. It has a mass of 250 grams. The density of the cube is which one of the following?
A) 50 g/cm and will float in water
B) 2.0 g/cm and will float in water
C) 50 g/cm and will sink in water
D) 2.0 g/cm and will sink in water
E) 0.5 g/cm and will float in water

This flow chart shows the amount of energy that is emitted by each type of light. ultraviolet > blue light > yellow light > red light (maximum energy) (minimum energy) in an experiment, shining which type of light on a strip of metal would be least likely to produce the photoelectric effect? ultraviolet light dim blue light bright red light bright yellow light

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule