Object A is moving around another object B by the gravitational attraction. What is the acceleration of
object A, if the distance between the two objects is
5.24 x 10^3 m, and the mass of object B is 4.21 x 10^21
kg? Estimate G as 6.67 * 10^-11 N (m/kg)?

Consider a file currently consisting of 200 blocks. assume that the file control block (and the index block in the case of indexed allocation) is already in memory. calculate how many disk i/o operations are required for contiguous, linked, and indexed (single-level) allocation strategies, for each of the conditions listed below. in the contiguous-allocation case, assume that there is not room to grow at the beginning but there is room to grow at the end. also assume that the block information to be added is stored in memory.

Is the number of complete movements of a wave per second.

"if the pressure acting on an ideal gas at constant temperature is tripled, its volume isa) reduced to one-third.b) increased by a factor of three.c) increased by a factor of two.d) reduced to one-half"