3. A carpenter uses a crowbar to remove the top of a box. The top has a resistance of 500 N. The

carpenter applies an input force of 250 N. What is the mechanical advantage of the crowbar?

aw-Hill Companies, In

Which type of light bulb uses phosphors? neon incandescent tungsten-halogen fluorescent

What would happen if the distance between the Earth and the moon decreased?

Why would a person choose to tie a helium-filled balloon to a child's wrist instead of simply having the child hold on to it? A. Helium is less dense than air, so it will float above air if the child lets go of the balloon. B.

What is the intermingling of one substance within another

Why might a permanent magnet become unmagnetized if it is dropped?

Select all the expressions below which represent a 20% discount off the price of an item that originally costs d dollars. A. 0.8d B. d-0.2 C. d-0.2d D. 1-0.2d

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?