Susan's 12.0 kg baby brother paul sits on a mat. susan pulls the mat across the floor using a rope that is angled 30∘ above the floor. the tension is a constant 29.0 n and the coefficient of friction is 0.180. use work and energy to find paul's speed after being pulled 2.70m .express your answer with the appropriate units.

What is the order of the moon, earth, and sun in a lunar eclipse and a solar eclipse?

A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm

The space between two 15-in.-long concentric cylinders is filled with glycerin (viscosity = 8.5 × 10-3 lb·s/ft2). the inner cylinder has a radius of 1 in. and the gap width between cylinders is 0.1 in. determine (a) the torque and (b) the power required to rotate the inner cylinder at 180 rev/min. the outer cylinder is fixed. assume the velocity distribution in the gap to be linear.