We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.
What are your answers?
1. A box of cleaning supplies weighs 15 N. If the box is lifted a distance of 0.60 m, how much work is done? (1 point)
0.040 J
9 J
14 J
25 J
2. To chop wood, you apply 50.0 N of force to an ax. The ax applies 600.0 N of force to the wood. What is the mechanical advantage of the ax?
(1 point)
650.0
8.3
12.0
0.0833
3. You do 185 J of work pulling a cart up a ramp. If the ramp does 153 J of work, what is the efficiency of the ramp?
(1 point)
82.7 percent
121.0 percent 32.0 percent
338.0 percent
4. Remy noticed that after oiling his skateboard wheels, it was easier to reach the speeds he needed to perform tricks. How did the oil help?
(1 point)
The oil reduced friction between the moving parts of the skateboard.
The oil increased friction between the moving parts of the skateboard.
The oil reduced friction between the skateboard wheels and the ground.
The oil increased friction between the skateboard wheels and the ground.
5. When building a house, which of the following is a simple machine that a construction worker would use?
(1 point)
plywood
safety hat cement pulley
5 answers
I finished it and got a 100% the answers are:
1.B
2.C
3.A
4.A
5.D
1.B
2.C
3.A
4.A
5.D
Got a 100% thanks @21 pilots
B
C
A
A
D
B
C
A
A
D
PsyDAG honestly people come here for answers nobody ever gives explanations on these kinds of websites and you arrived early before anyone gave answers so your just mad. i understand the pain with no answers.
21 pilots is right
8 answers