9.
the diagram shows a uniform horizontal platform suspended by two ropes
the platform has a mass of 70 kg. a 25 kg bucket of water sits at point p.
what are the tensions in the two ropes?

In a system, when potential energy decreases, then entropy also decreases. true false

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].

Infrared radiation has wavelengths that are shorter than visible light is part of the visible light spectrum has wavelengths that are longer than visible light has the same wavelengths as ultraviolet radiation