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sveta [45]
3 years ago
13

Which describes the molecular motion of a solid nickel marble rolled across the floor?

Physics
1 answer:
Gemiola [76]3 years ago
7 0
I can't decide between A and B, but B seems more likely to me. Even though the molecules don't look like they're moving, the area of contact is slightly more compressed.
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A 60.0-kg person is in an elevator with a mass of 2000 kg. The elevator moves vertically up through a distance of 24.0 m with a
kati45 [8]

The mass of the (elevator + person) is (2,000 kg + 60 kg) = 2,060 kg .

The weight is (mass x gravity) = (2,060 x 10) = 20,600 newtons

Work = (force x distance) = (20,600 newtons x 24m) = <em>494,400 joules</em>

The speed, acceleration, and how much time it takes don't make any
difference, unless you want the average power during the lift.

         Power = (work)/(time) =
           494,000 J / (24/4 m) =
           494,000 J / 6 sec = <em><u>82,400 watts</u></em>      wow !
6 0
3 years ago
When the power in their house unexpectedly went off, Radhika's mother said that she would check and replace the fuse. What exact
denis23 [38]

A) a piece of wire

Explanation:

Radhika's mother is simply replacing piece of wire.

A fuse is made up of a thin strip of wire that melts when there is an over current.

  • A fuse is electrical safety device in circuit that protects appliances from over current.
  • The wire in a fuse has a high resistance and low melting point.
  • When current is high, the resistance of the wire causes it to melt and break the circuit.
  • In this way, appliances are protected from the harmful effect of the surge in voltage.

Learn more:

Current brainly.com/question/3051098

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6 0
3 years ago
Two trains travel toward each other on the same track, beginning 100 miles apart. One train travels at 40 miles per hour; the ot
Paladinen [302]

D = distance between th two trains at the start of the motion = 100 miles

V = speed of the faster train towards slower train = 60 mph

v = speed of the slower train towards faster train = 40 mph

t = time taken by the two trains to collide = ?

time taken by the two trains to collide is given as

t = D/(V + v)

t = 100/(60 + 40) = 1 h

v' = speed of the bird = 90 mph

d = distance traveled by the bird

distance traveled by the bird is given as

d = v' t

d = 90 x 1

d = 90 miles

7 0
3 years ago
Read 2 more answers
Which of the following is not a primary cause of eroding rock
Pavel [41]
The answer to this is Animal habitation 
4 0
3 years ago
I forgot to write also put drawings on my theory questions
11Alexandr11 [23.1K]
Hi love hope you had an amazing day! you’re beautiful!!
8 0
3 years ago
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