Joey's little brother makes a ramp to push hos toy dump truck up to his sandbox. if he uses 5N of force to push the 12N truck up the ramp, what is the mechanical advantage of his ramp? A. 6.0
B.0.42
C. 2.4
D. 23.5​

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

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?

To a of 4 x hz is 1. 0. mm nm nm