Bigger objects have more gravitational pull. Bigger, meaning the size and mass. The closer you are to the object, the stronger the pull is. The earth is much bigger, and has a bigger mass than the moon, meaning that the moon is able to orbit around the earth. You are closer to the earth, so you dont randomly get pulled towards thw moon, because earts gravitational pull is stronger than the moons.
Q9. R₁ only.
Since the upper branch is cut at x, the circuit in this branch is not closed. No current will flow through this branch. In this case, the circuit becomes a series circuit and current only flows through R₁.
Q10. 3 pathways.
3 different resistors are connected in parallel, which means there will be three branches of parallel circuit, each with one resistor. Current can flow through 3 different branches, until the parallel circuits combine together again.
Answer:
P = density (p) * g * h
P = 1000 kg/m^3 * 9.8 m/s^2 * 40 m = 392,000 N/m^2
since kg m / s^2 = Newtons
The average pressure is 1/2 (pressure at 0m + pressure 80 m) for liquid of uniform density
