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mina [271]
3 years ago
6

What force is needed to accelerate 300kg rock as a rste of 4m/s​

Physics
2 answers:
Natali [406]3 years ago
4 0

Answer:

60 maybe

Explanation:

ki77a [65]3 years ago
4 0

Answer:

1200 newton

and that's 4m/s² not 4 m/s

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You have been hired to design a spring-launched roller coaster that will carry two passengers per car. The car goes up a 13-m-hi
Andrew [12]

Answer:

22.15 N/m

Explanation:

As we know potential energy = m*g*h

Potential energy of spring = (1/2)kx^2

m*g*h = (1/2)kx^2

Substituting the given values, we get -  

(400)*(9.8)*(10) = (0.5)*(k)*(2.0^2)

k = 39200/2.645

k = 19600 N/m

For safety reasons, this spring constant is increased by 13 % So the new spring constant is  

 k = 19600 * 1.13 = 22148 N/m = 22.15 N/m

3 0
3 years ago
How does increasing the distance between charged objects affect the electric force between them?
mina [271]

Answer: energy force

Explanation:

6 0
3 years ago
I really need Brainliest i am desprate
kondor19780726 [428]

Hy tikki! I've asked some questions, so of you find the questions as easy, then answer it. I'll surely mark you as brainliest :)

6 0
3 years ago
A train increases its speed steadily from 10 m/s to 20 m/s in
rewona [7]

Answer:

15m/s

Explanation:

add the two speeds and divide by 2

10+20=30

30/2=15

3 0
3 years ago
A hockey player skates with an average speed of 8.25 m/s. The distance the player will travel in 5.60 s is __________ .
OverLord2011 [107]
<h2>Greetings!</h2>

To find this value, you need to remember the speed formula:

3 = 6 / 2

Speed = distance ÷ time

Rearrange to make distance the subject:

Distance = speed * time

Simply plug these values into this:

5.6 * 8.25 = 46.2

<h3>So the player will travel 46.2 metres!</h3>
<h2>Hope this helps!</h2>
7 0
2 years ago
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