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Butoxors [25]
3 years ago
14

When a pendulum is at the position all the way to the left when it is swinging (at the top of the arc), what is true of the kine

tic and potential energy?
Physics
2 answers:
Nadusha1986 [10]3 years ago
8 0
Potential energy + kinetic energy = constant at every moment in time

At the highest point:

potential energy is at its maximum 
kinetic energy is zero
Masteriza [31]3 years ago
4 0

Answer:

Kinetic energy(1/2mV²) = 0

Potential energy is converted to kinetic energy (mgh = 1/2mv²)

Explanation:

kinetic energy of an object or body has to do with the motion of the object/body at that point

Kinetic energy = 1/2MV²

The kinetic energy of the pendulum at the top of the arc is 0, this invariably means that there's no velocity of the pendulum at that point which makes it 0 (static). The Potential energy is converted to kinetic energy when the pendulum starts moving in the opposite direction after this period.

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A cooking pot is sitting in a kitchen for several hours unused. Why does it feel cold when you touch it?
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Answer:

I would go with 2

Explanation:

But i would also not go with my answer. Lol

8 0
3 years ago
Why do some things float but others sink if they have the same mass?
Vsevolod [243]
It's called buoyancy. It is the tendency of an object to float
7 0
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g As observed on earth, a certain type of bacteria is known to double in number every 24 hours. Two cultures of these bacteria a
tangare [24]

Answer:

86.4 hrs

Explanation:

The amount of bacteria is initially 1

It doubles every 24 hrs.

After first 24 hrs, the amount = 2

After next 24 hrs = 4

After next 24 hrs = 8

After next 24 hrs = 16

After next 24 hrs = 32

After next 24 hrs = 64

After next 24 hrs = 128

After next 24 hrs = 256

Total time taken to reach 256 = 24 x 8 = 192 hrs

For the bacteria culture on the rocket that travels at a speed of 0.893c relative to the earth, this time is contracted by the relationship

t = t'(1 - ¥^2)^0.5

Where t is the contracted time =?

t' is the time on earth

¥ = v/c

Where v is the speed of the rocket

c is the speed of light

since v = 0.893c

¥ = 0.893

Substituting, we have

t = 192 x (1 - 0.893^2)^0.5

t = 192 x 0.2025^0.5

t = 192 x 0.45 = 86.4 hrs

8 0
3 years ago
Your class decides to build a circuit to make a light bulb shine. When you are finished, you have a setup with wires, a light bu
Evgesh-ka [11]
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A rock climber stands on top of a 50 m -high cliff overhanging a pool of water. He throws two stones vertically downward 1.0 s a
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3 years ago
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