A boy lifted a 50 newton rock 1 meter. How much work was done? Select one:
a. 1 Nm
b. 5 Nm
c. 10 Nm
d. 50 Nm

Explain the consequences of this addiction to the brain tissue

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader