Which of the following shows the prefix is decending (large to small) order correctly ? a. mega, giga, kilo, nano
b. giga, kilo, mega, nano
c. nano, kilo, mega, giga
d. giga, mega, kilo, nano

In the illustration, which two simple machines are being used to enable the student to reach the door? a. inclined plane and pulley b lever and wheel-and-axle c pulley and lever d wheel-and axle and inclined plane

Estimate the kinetic energy of mars with respect to the sun as the sum of two terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. (assume mars is a uniform sphere with mass = 6.4×10 to the power of 23 kg, radius = 3.4×10 to the power of 6 m, rotation period = 24.7 hours, orbital period = 686 days and is 2.3×10 to the power of 8 km from the sun.)

What is the answer to these problems 30 pt