Answer:
4341.44763 kg/m³
Explanation:
= Actual density of cube = 1800 kg/m³
= Density change due to motion
v = Velocity of cube = 0.91c
c = Speed of light = 
Relativistic density is given by
The cube's density as measured by an experimenter in the laboratory is 4341.44763 kg/m³
Gravity.: Gravity is the force that acts at a right angle to the path of an orbiting object.
3.60 A = 3.60 coulombs of charge per second
(3.60 Coul/sec) x (15.3 sec) = 55.08 coulombs of charge
1 coulomb of charge is carried by 6.25 x 10^18 electrons
Number of electrons =
(55.08 Coul) x (6.25 x 10^18 e/coul) = <em>3.4425 x 10^20 electrons</em>
I choose D. but I'm not sure if it's right yet. Let me know if it was :)
The temperature rises during boiling.
