Three blocks of masses 1.7, 2.43, and 3.04 kilograms are connected by massless strings, one of which passes over a frictionless pulley of negligible mass. While the 1.7 and 2.43 masses are attached to one side of the string, the mass 3.04 is on the other side. Calculate the acceleration of the 3.04 kg block

Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?

Engines for propeller-driven aircraft are limited in their maximum rotational speed by the fact that the tip speed of the propeller must not approach the speed of sound in air (mach i). taking 6 ft as a typical diameter for a propeller of a light airplane and 1100 fils as the speed of sound, find the upper limit on the rpm (revolutions per minute) of the propeller shaft.