when a power of 310 watts is applied to it, a pulley lifts box a one meter. the same pulley is used to lift box b. when the same amount of power is applied to box b, it is raised two meters. what can you say about the mass of the two boxes? a) the mass of box a is half the mass of box b.
b) the mass of box a is three times the mass of box b.
c) the mass of box a is one–third the mass of box b.
d) the mass of box a is double the mass of box b.

The scalar triple product computes the magnitude m of the moment of a force vector f about a specified line. it is m = (r × f) · n, where r is the position vector from the line to the point of application of the force and n is a unit vector in the direction of the line. use matlab to compute the magnitude m for the case where f = [12, −5, 4] n, r = [−3, 5, 2] m, and n = [6, 5, −7].

Arrange the images in order to show how lake-effect snow occurs.

Abeverage can is made of 3004-h19 aluminum alloy (elastic modulus 69 gpa, tensile yield strength 285 mpa, density 2.72 g/cm^3). the dimensions on the can are approximated as a thin-walled cylinder with a height of 4.83 inches, diameter of 2.60 inches. empty the can has a mass of 14.2 g. determine: a. the wall thickness of the cylinder b. assuming a pinned-pinned condition what is the critical load? c. assuming a fixed-fixed condition what is the critical load?