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just olya [345]
3 years ago
11

When a spring is compressed, the energy changes from kinetic to potential. Which best describes what is causing this change?

Physics
2 answers:
vredina [299]3 years ago
8 0

Answer:

gravitational energy

Explanation:

Lelu [443]3 years ago
3 0

Answer:

work

Explanation:

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A movie stunt performer is filming a scene where he swings across a river on a vine. The safety crew must use a vine with enough
Julli [10]

Answer:

1125.66956 N

Explanation:

m = Mass of stunt performer

g = Acceleration due to gravity = 9.81 m/s²

v = Velocity of the swing = 7 m/s

T = Tension

r = Radius of the swing = Length of vine = 11.5 m

From the free body diagram

T-mg-m\frac{v^2}{r}=0\\\Rightarrow T=mg+m\frac{v^2}{r}\\\Rightarrow T=m(g+\frac{v^2}{r})\\\Rightarrow T=80(9.81+\frac{7^2}{11.5})\\\Rightarrow T=1125.66956\ N

The minimum tension force the vine must be able to support without breaking is 1125.66956 N

7 0
3 years ago
If a running system has a total change in heat of 295 joules, and it's running at a temperature of 402 kelvin, what is the entro
Liula [17]
The answer is either 75 or 55
7 0
3 years ago
A child slides down the water slide at a swimming pool and enters the water at a final speed of 4.22 m/s. At what final speed wo
zheka24 [161]

Answer:

v'=5.97 m/s        

Explanation:

If the friction and fluid friction are ignored, then by law of conservation of mechanical energy, potential energy at the top of the slide must be equal to the kinetic energy at the bottom of the slide. Thus, the height of slide and final speed at the bottom of the slide are related as:

mgh = \frac {1}{2} mv^2\\v =\sqrt{2gh}

let the final speed be v' when h' = 2 h

\frac{v'}{v}=\frac{\sqrt h'}{\sqrt h}\\v'=\sqrt{\frac{2h}{h}}\times v\\v'=\sqrt2 v\\v'=5.97 m/s

8 0
3 years ago
A hockey stick moves toward a puck sitting on ice. A blue arrow labeled A points up from the puck. A blue arrow labeled F subscr
Lunna [17]

Answer:

normal force, the pluck will move off in a different direction

Explanation:

7 0
3 years ago
Read 2 more answers
How is an arranged marriage different from or similar to other ways people find and experience love today?
Zepler [3.9K]

Answer:

The arrange marriage and love marriage is same or different from each other "one is about loving and then getting committed and another one is getting committed and then loving,so in the either way both are same."

Explanation:

There is no difference at all! Because eventually, in both the cases, people manage to stay together and share the responsibilities. What actually matters is that, if Love happened.

Let’s put it this way. Two people fell in love and they get married, but why is that the same couple would want to separate later? Let’s take another example. Two people who don’t have any idea of each other’s existence get married. why is that they choose to live together forever? Love becomes the reason for any split or patch.

When two people are in love everything becomes easy. A relationship doesn’t look hard, in fact I have friends who have a wonderful married life and people still don’t bother to find if that’s a love or an arranged match. Few of them choose partners of their own and few of them fell head over heels in love with their spouse, but all of them look as if they are on an extended holiday.

8 0
4 years ago
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