The correct option is D.
Micheal Friday devised a wire which hanged down into a glass vessel that has a bar magnet secured at the bottom. He then filled the glass vessel with Mercury and connected the apparatus to a battery. This sent electricity through the wire, thus creating a magnetic field around it. This field interacted with the field around the magnet and cause the wire to rotate clock wisely.
It would be 4 atm, because the way to figure out the final pressure is that (P1)(V1)=(P2)(V2)
meaning that the original pressure x original volume is equal to the final pressure x final volume. This gas law is called Boyle's law if you'd like to learn more about it.
But (1 atm)(40 mL)=(4 atm)(10 mL)
So it would be the second choice.
Answer:
38Kgm/s
Explanation:
Momentum (p) = mass (m) × velocity (v)
Total momentum is the sum of all the momenta of each object in a system. That is:
Total momentum = {m1v1} + {m2v2}
Where;
m1 = mass of ball 1 = 5kg
v1 = velocity of ball 1 = 4m/s
m2 = mass of ball 2 = 6kg
v2 = velocity of ball 2 = 3m/s
Total momentum = {5 × 4} + {6 × 3}
Total momentum = {20} + {18}
Total momentum = 38Kgm/s
Answer:
the surface is tilted or uneven...