stuffwiz

A flight attendant pulls her 70.0 N flight bag a distance of 253 m along a level airport floor at a constant speed. The force she exerts is 40.0 N at an angle of 52.0° above the horizontal. Find the work done by the force of friction on the flight bag.

Two movers have to lift a refrigerator onto a truck. One of the movers wants to lift the refrigerator vertically, but the other mover wants to roll it up a ramp by applying a force parallel to the ramp. Assume the height of the truck is 1.5 m, the length of the ramp is 5.0 m, and the weight of the refrigerator is 1200.0 N. Calculate the force and the total work required in each case. Which method is easier?

for lifting it straight up, I got 1200.0 N as the force and 1.8 x 10^3 J for the work. I got 4.0 x 10^3 N and 2.0 x 10^4 J for the one with the ramp, but it seems like the ramp method should be easier...

I've kinda figured out the chords (they mostly being Ab's and Eb's) but sheet music would make this so much easier to learn on piano, especially the intro/outro. thanks in advance!

I know if you go to 2nd [mem] I can view how much RAM the program takes up, and I know if I clear the RAM it'll delete the program, but I want to delete just the program and nothing else. I've looked in the manual that came with the calculator as well but I can't find anything.