Rod x and rod y are cylindrical rods made of the same metal. rod x has radius r and length l. rod yconducts heat at the same rate as rod x. which could be the dimensions of rod y? radius r; length 2l radius 4r; length l radius 2r; length 4l radius 2r; length 2l

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

Acar moves a distance of 50.0 km west, followed by a distance of 64.9 km north what was the magnitude of the displacement of the car, in units of kilometers?

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =