3 years ago

What does ‘centripetal’ mean in physics?

1 answer:

5 0

Learners Definitionof centripetal force. physics : a force that pulls an object moving in a circular path toward the center of its path.

Centrifugal, however, causes objects to move outwardly.

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Identify whether the following statements describe a change in acceleration. Explain your response answer them all plz

weqwewe [10]

Answer:c

Explanation:it picking up speed

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3 years ago

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Temperature change time base problem. Suppose V = 24 V, I = 0.1 A, for water: mw = 51 gm, cw = 4.18 J/gm ∘K-1, for resistor: mr

nirvana33 [79]

Answer:

t = 444.125 sec

Explanation:

Given data:

V = 24 volt

I = 0.1 ampere

mass of water mw = 51 gm

cr = 4.18 J/gm degree K^-1

mass of resistor = 8 gm

cr = 3.7 J/gm degree K^-1

we know that power is given as

Power P = VI

But P =E/t

so equating both side we have

$\frac{E}{t} = VI$

solving for t

$t = \frac{E}{VI}$

$t = \frac{m_w C_w \Delta T}{VI}$

$t = \frac{51 \times 4.18 \times (5 -0)}{24\times 0.1}$

t = 444.125 sec

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4 years ago

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Help m-e-e people -_-!

xxTIMURxx [149]

Answer:

the answer is

Explanation:For equilibrium

Weight = Tension

mg=T

∴T=4×3.1π=12.4πN (as can be inferred from the question)

△l/l

T/A

1000

0.031

/20

12.4π/π(

1000

)

4×0.031

12.4×20×1000×(1000)

=2×10

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3 years ago

Which of the following quantities are unknown?

Sauron [17]

Answer:

Charge of the alpha particle

Explanation:

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If you are inside a car and the car is struck by lightning, it is best to stay inside because the electric field inside the car

Contact [7]

Answer:

Get out if the car

Explanation:

Get out of the car because the car could explode by over eclectic power

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3 years ago

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