Suppose you determined the density of a cube to be 1.40 g/cm3. would the density of the cube be different if you had a cube made of the same material with twice as much mass? explain.

Select the correct answer. you have a nightlight plugged into an outlet in the hallway, which uses 3.5 watts when plugged in. if the house circuit provides 120.0 volts, what is the current through this bulb?

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.