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expeople1 [14]
3 years ago
9

Imagine a volcano erupting many times over a period of years. With following landforms is most likely to result of volcanic erup

tions: A valley, A mountain, or a canyon? Explain.
Science.
Physics
1 answer:
grigory [225]3 years ago
5 0
I would say mountain. As the volcanic lava and Ash builds up. The eventually forms a mountain. There are many volcanic mountains in the world, like mount. Everest.
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What name is used for a high-power variable resistor?
const2013 [10]
The answer would be C: Rheostat.  :)
3 0
3 years ago
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A 800 kg safe is 2.1 m above a heavy-duty spring when the rope holding the safe breaks. The safe hits the spring and compresses
stellarik [79]

Answer:

k = 17043.5 N/m = 17.04 KN/m

Explanation:

First we need to find the force applied by safe pn the spring:

F = Weight of Safe

F = mg

where,

F = Force Applied by the safe on the spring = ?

m = mass of safe = 800 kg

g = 9.8 m/s²

Therefore,

F = (800 kg)(9.8 m/s²)

F = 7840 N

Now, using Hooke's Law:

F = kΔx

where,

K = Spring Constant = ?

Δx = compression = 46 cm = 0.46 m

Therefore,

7840 N = k (0.46 m)

k = 7840 N/0.46 m

<u>k = 17043.5 N/m = 17.04 KN/m</u>

5 0
3 years ago
On an ice skating rink, a girl of mass 50 kg stands stationary, face to face with a boy of mass 80 kg. The children push off of
sasho [114]

The velocity of the girl is  -4.8 m/s.

Using the principle of conservation of linear momentum, The total momentum of  bodies before and after collision is constant. Since the two objects are stationary, the initial momentum of each body is zero.

Thus;

0 = (80 × 3) + (50 × v)

0 = 240 + 50 v

-240 = 50 v

v = -240/50

v = -4.8 m/s

Note that the negative sign shows that the velocity of the girl is in opposite direction that that of the girl.

Learn more about momentum: brainly.com/question/904448

5 0
3 years ago
How can you use weights of the filled cell models to determine the rate and direction of diffusion?
nikklg [1K]
Compare the initial mass to the final mass.
7 0
3 years ago
I lost 1 point on this and I don’t know what I did wrong.
Viktor [21]

Answer:

i think its because u gave the almost every answer the same exact thing. all the questions have different ways of moving which means different forces for each one i hope this helps :)

Explanation:

4 0
3 years ago
Read 2 more answers
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