PLS HELP! QUESTION (2/2) Two blocks, one of mass 1.00 kg and 4.00 kg are tied together with a massless rope as in the image. This rope is strung over a massless, resistance-free pulley. The blocks are released from rest. Find the tension in the rope and the acceleration of the blocks.

(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present

If a simple machine reduces the strength of a force, what must be increased?

The average density of the planet uranus is 1.27 103 kg/m3. the ratio of the mass of neptune to that of uranus is 1.19. the ratio of the radius of neptune to that of uranus is 0.969. find the average density of neptune.