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Snezhnost [94]
2 years ago
7

A 1-kilogram stone is being dropped from a bridge 100 meters above a gorge.

Physics
2 answers:
ipn [44]2 years ago
6 0
<h2><u>ANSWER</u><u>:</u></h2>

<h3><u>C</u><u>.</u><u> </u><u>1</u><u>0</u><u>0</u><u> </u><u>NEWTONS</u></h3>

<h2><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u></h2>

<u>CARRY</u><u> </u><u>ON</u><u> LEARNING</u>

<u>CAN</u><u> </u><u>Y</u><u>OU</u><u> BRAINLEST</u><u> ME</u>

ziro4ka [17]2 years ago
4 0

Answer:

C. 100 NEWTONS

Explanation:

just my brain being ly = brainly is the name so my brian is being ly

You might be interested in
friction force is the opposition to the motion of surfaces sliding across each other. what is one factor that affects the amount
ruslelena [56]

Answer

Nature of the surfaces.


Explanation

Friction is the the force that opposes motion between two surfaces that are in relative motion. If two objects are in contact, one of it or both must be in motion for friction to exist.

Friction is affected by a number of factors.

One is the weight of the object. The more the weight of the object the higher the friction between it and the surface.

The other factor is the nature of the surfaces. Rough surfaces contribute to high friction while smooth surfaces reduces the friction between surfaces.  

3 0
3 years ago
a spring is stretched 20 cm by a 30.0 n force. determine the work done in stretching the spring from 0 to 40 cm?
Alekssandra [29.7K]

The work done when a spring is stretched from 0 to 40cm is 4J.

What is work done?

Work done is the magnitude of force multiplied by displacement of an object. It is also the amount of energy transferred to an object when work is done on that.

The work done on the spring to stretch to 40cm is,

F = kx

where F is force, k is force constant.

k = F / x = 10 N / 20 * 10^-2 m = 50 N/m

W = 0.5 * k * (x)^2

where W = work done, k = force constant.

W = 0.5 x 50 x (40 x 10^-2)^2 = 4 J.

Therefore, the work done on the spring when it is stretched to 40cm is 4J.

To learn more about work done click on the given link brainly.com/question/25573309

#SPJ4

3 0
1 year ago
Calculate the radius of curvatuire of the concave lens based on the measured focal length.
Roman55 [17]

Answer:

 R₁ = (n -1) f

Explanation:

In geometric optics the focal length and the radius of curvature are related, for the case of a lens

          1 / f = (n₂-n₀) (1 / R₁ - 1 / R₂)

where f is the focal length, n₂ is the refractive index of the material, n₀ is the refractive index of the medium surrounding the material, R₁ and R₂ are the radius of curvature of each of the material's

In our case, the most common is that the lens is in the air, so n1 = 1, in many cases one of the surfaces is flat, so its radius of curvature R₂ = ∞.

     1 / f = (n-1) (1 / R₁)

we look for the radius of curvature R₁

    1 / R₁ = 1 / f (n-1)

     R₁ = (n -1) f

With this expression we can find the radius of curvature of a concave-plane lens

8 0
3 years ago
How is rain related to lightning​
-BARSIC- [3]

Answer:

Lightning begins as static charges in a rain cloud.Water droplets in the bottom part of the cloud are caught in the updrafts and lifted to great heights where the much colder atmosphere freezes them. Meanwhile, downdrafts in the cloud push ice and hail down from the top of the cloud.

Explanation:

<h2><u>BRAINLIEST</u><u> </u><u>PLEASE</u><u>.</u><u>.</u><u>.</u></h2>
8 0
2 years ago
Read 2 more answers
How much did the temperature change between 10 a.m. and 1 p.m.?
yanalaym [24]

First take note that you're figuring 10am and 1pm. Their temperatures are 77 degrees and 83 degrees

To solve subtract 83-77=6

So it rose 6 degrees.

4 0
3 years ago
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