# Science

posted by .

2. Two identical masses are moving down a slope. One mass is traveling twice as fast as the other mass. How does the kinetic energy of one mass compare to the other? (1 point)
The faster object has the same kinetic energy as the slower object.
The faster object has less kinetic energy than the slower object.
The faster object has twice as much kinetic energy as the slower object.
The faster object has four times as much kinetic energy as the slower object.
3. A 10.0-kg animal is running at a rate of 3.0 m/s. What is the kinetic energy of the animal? (1 point)
3.3 J
30.0 J
45.0 J
90.0 J
When a tennis ball smashes into a tennis racket, the ball temporarily changes shape as it compresses against the racket. Which type of energy is temporarily stored with the ball as it is compressed?

(1 point)
elastic potential
kinetic
electrical
potential
8. Some kayakers coat the bottom of their kayaks with wax to make them more slippery.

Kayakers wax their boats to (1 point)
reduce the work output.
reduce the weight of the kayak.
reduce their input force.
reduce the speed the boat travels in water.
9. You apply 100.0 N of force to a machine. The machine applies 20.0 N of force to the load. What is the mechanical advantage of the machine? (1 point)
200.0
80.0
5.00
0.200
10. A construction worker is using his weight to keep a stationary stack of wooden beams from falling. If the construction worker uses 689.0 N of force to hold 10 beams stationary against a wall, how much work does he do? (1 point)
0 J
0.0150 J
68.9 J
6,890 J
11. Metal cookware often comes with plastic handles. The plastic handles (1 point)
decrease friction.
are insulators.
are conductors.
2.d
3.c
7.a
8.c
9.c
10.a
11.c

• Science -

2. Slower object: KE = 0.5m*V^2.
Faster object: KE = 0.5m*(2V)^2 =
0.5m*4*V^2.

0.5m*4V^2/0.5m*V^2 = 4 Times.

3. KE = 0.5m*V^2

9. MA = 20/100

10. W = F*d. d = 0.

• Science -

is number 10. A

• Science -

• Science -

i do not know

• Science -

are you from connexus?

• Science -

I think so Morgan

• Science -

• Science -

2.D
3.C
7.A
8.C
9.D
10.A
11.C
These are the correct answers for those

• Science -

These answers are wrong you are an idiot

• Science -

You guys are all dumb maybe instead of cheating online maybe go back to you lessons and study

• Science -

well what are the nsewers if your so smart

• Science -

ansewers*

• Science -

this is a conexus test not gonna help what your looking for

• Science -

• Science -

We did study you idiot!!! I just want to check my answers

• Science -

stop talking stuff and help one another! :( I am so disappointed in you kids! You're parents will be mad when I tell on all of you. I am a teacher/tutor here and I will not tolerate this behavior!

• Science -

I don't know who you are, but the next time you try to impersonate a teacher, start your sentences with a capital letter and use great punctuation skills. Secondly, I have no idea how you were not only going to impersonate me without using correct spelling and improper punctuation, but you also expect these kids to believe you can contact their parents with no information about their personal life, stop using scare tactics on these poor kids.

• Science -

This is just pure madness, you guys don't fight! let's just agree to disagree. Honestly, in my opinion, I believe the it doesn't matter if you cheat or not, if you learned something then you have achieved something:) but still you should at least try because if you don't you won't. meaning, if you believe you can't, you won't try to be anything other than what you can be!
- This girl is on fire

• Science -

That's right!! @This girl is on fire!! Any one have the answers to the conexus test?? There is 25 questions!

• Science -

Lesson 12:
1. D 2. D
3. C 4. C
5. A 6. B
7. A 8. C
9. D 10. A
11. C 12. A
13. A D 14. A
15. C 16. B C
17. C 18. C
19. B 20. B.
21. ABD 22. A
23. D

• Science -

Hey guys! If you're in ARCA or any other Connections Academy schools then these will be the right answers.
1. D
2. D
3. C
4. C
5. A
6. B
7. A
8. C
9. D
10. A
11. C
12. A
13. A/D
14. A
15. C
16.B/C
17.C
18. C
19. B
20. B
21. A/B/D
22. A
23. D

You can figure out the last two yourself right?? Enjoy, peoples!

## Similar Questions

1. ### Physics: Three Identical Masses

Three identical masses of 640 each are placed on the x axis. One mass is at = -100 , one is at the origin, and one is at = 400 . What is the magnitude of the net gravitational force on the mass at the origin due to the other two masses?
2. ### Physics

A long thin rod of mass M = 2:00 kg and length L = 75:0 cm is free to rotate about its center as shown. Two identical masses (each of mass m = .403 kg) slide without friction along the rod. The two masses begin at the rod's point of …
3. ### physics

A distance of 1 m separates two objects, one with a mass of 2 kg and the other with a mass of 4 kg. A 0.5 kg mass is placed between them at the point where the net gravitational force generated by the other two masses is zero. How …
4. ### Physics -- check answers

1. In moving an object of mass 10 kg through a distance of 8.0 m, 40 J of work is done. The average force exerted is?

1. In moving an object of mass 10 kg through a distance of 8.0 m, 40 J of work is done. The average force exerted is?

1. A 2.5 kg mass at rest on a horizontal surface is acted upon by an applied horizontal force of 150 N. A frictional force of 100 N acts on the mass. How much work is done on the mass?
7. ### physics

One object is at rest and another is moving. The two collide in a one-dimensional, completely inelastic collision. In other words, they stick together and move off with shared velocity. The speed of the object that is moving initially …
8. ### science

Two identical masses are moving down a slope. One mass is traveling twice as fast as the other mass. How does the kinetic energy of one mass compare to the other?
9. ### science

Tow masses are moving down a slope. One mass is traveling twice as fast as the other mass. How does the kinetic energy of one mass compare to the other?
10. ### science

Two identical masses are moving down a slope. One mass is traveling twice as fast as the other mass. How does the kinetic energy of one mass compare to the other?

More Similar Questions