The mechanical advantage of a machine is the number of times a ma-chine increases

a. the distance an object is moved.

b. the amount of friction.

c. the change in direction.

d. the force exerted on the machine.

Which path would light follow as it travels through glass?

The total voltage in a circuit with voltage drops of 15v 25v and 20v is

A substance with a pH of 13.0 will A. change red litmus paper to blue. B. change blue litmus paper to red. C. not change red or blue litmus paper. D. not be testable using litmus paper.

For the equation 3Cu + 8HNO3 → 3Cu (NO3) 2 + 2NO + 4H2O, how many units of NO3 are represented on the products side? A) 2 B) 3 C) 6 D) 8

if your prediction is proven incorrect you should leave out all observations that do not support your prediction or simply change your prediction

Life cycle of a medium mass star

Use the periodic table to complete this equation that represents the process of nuclear fusion. Superscript 14 Subscript 7 Baseline N + Superscript 1 Subscript 1 Baseline H yields Superscript A Subscript B Baseline C

Josh rolled a bowling ball down a lane in 2.5 seconds. The ball travelled at a constant acceleration of 1.8 m/s/s down the lane and was traveling at a speed of 7.6 m/s by the time it reached the pins at the end of the lane.

How many meters of the rock wall eroded between 1910 and 1927?

As air temperatures increase, evaporation increases. Warmer temperatures also increase the capacity to absorb water vapor. More water vapor in the atmosphere accelerates the greenhouse effect.