3. The largest blocks in the Great Pyramid weigh 15 tons (about 13,600 kg). Dragging such a block up a ramp with a mechanical advantage of 3 would
require a force of 4.5 x 10^4 N. If 9.0 x 10^5 J of work was done on the block to
move it up the ramp, neglecting friction, how far was the block moved?

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.

Ineed ! using proper grammar, spelling, and punctuation, write at least one 5 sentence paragraph describing 3 ways we use the elements of the electromagnetic spectrum (ems) in our everyday lives.