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noname [10]
3 years ago
9

Which of the following is an example of kinetic energy

Physics
2 answers:
Elenna [48]3 years ago
8 0
Running because kinetic energey is the engery created by motion
musickatia [10]3 years ago
5 0
Well kinetic energy is energy<span> possessed by an object due to its motion or movement.</span>
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A scientist travelled 80 kilometres each day in the buggy.
7nadin3 [17]

Explanation:

In one day a scientist can travel = 80 km

In 10 days. a scientist can travel = 80* 10

= 800 km.

4 0
3 years ago
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You've been tired and lethargy what are two possible reasons?
dybincka [34]

Explanation:

physical exertion.

lack of physical activity.

lack of sleep.

being overweight or obese.

periods of emotional stress.

boredom.

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taking certain medications, such as antidepressants or sedatives.

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3 years ago
A car is traveling at 15 m/sm/s . Part A How fast would the car need to go to double its kinetic energy
GREYUIT [131]

Answer:

21.21 m/s

Explanation:

Let KE₁ represent the initial kinetic energy.

Let v₁ represent the initial velocity.

Let KE₂ represent the final kinetic energy.

Let v₂ represent the final velocity.

Next, the data obtained from the question:

Initial velocity (v₁) = 15 m/s

Initial kinetic Energy (KE₁) = E

Final final energy (KE₂) = double the initial kinetic energy = 2E

Final velocity (v₂) =?

Thus, the velocity (v₂) with which the car we travel in order to double it's kinetic energy can be obtained as follow:

KE = ½mv²

NOTE: Mass (m) = constant (since we are considering the same car)

KE₁/v₁² = KE₂/v₂²

E /15² = 2E/v₂²

E/225 = 2E/v₂²

Cross multiply

E × v₂² = 225 × 2E

E × v₂² = 450E

Divide both side by E

v₂² = 450E /E

v₂² = 450

Take the square root of both side.

v₂ = √450

v₂ = 21.21 m/s

Therefore, the car will travel at 21.21 m/s in order to double it's kinetic energy.

8 0
2 years ago
The IMA of the pulley show is
Lera25 [3.4K]

The IMA of the pulley shown is 2.

4 0
3 years ago
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The swim bladder of a fish helps keep the fish from sinking by_______.
Slav-nsk [51]

Answer:

C. Increasing its buoyancy

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3 years ago
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