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3 years ago

The law of inertia to both moving and no moving objects. True or false

Physics

2 answers:

Ann [662]3 years ago

4 0

This is true it applies to both moving and not moving

Zepler [3.9K]3 years ago

3 0

True, the law of inertia effects both moving and non-moving objects.

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The critical angle for water is 49°. If a ray of light

Sonja [21]

Answer:

Snell's Law states

Ni sin i = Nr sin r

Judging from the question the source of the ray is in the water (directed up)

or NI = 1 / sin 49 Ni = 1.325 deg the critical angle

From inside the pond:

Nr = 1.325 * sin 45 / 1 = 94 deg

So refraction can occur outside the pond and you do not have total internal refection.

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3 years ago

17. _______ is a fuel produced by fermenting crops.

DENIUS [597]

Fuel is produced by fermenting Ethanol

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3 years ago

How much power is generated if 375 J of work is done in 15 s?

erma4kov [3.2K]

Answer: 25 watt

Explanation:

Given,

Work= 375 j

Time= 15

So, power = W÷t

= 375 ÷ 15

= 25 watt

7 0

3 years ago

Someone please help me

schepotkina [342]

The answer is oil and water. If you want I could give you the reason too

5 0

3 years ago

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A magnetic field is uniform over a flat, horizontal circular region with a radius of 1.50 mm, and the field varies with time. In

atroni [7]

Answer:

The average induced emf around the border of the circular region is $8.48\times 10^{-5}\ V$ .

Explanation:

Given that,

Radius of circular region, r = 1.5 mm

Initial magnetic field, B = 0

Final magnetic field, B' = 1.5 T

The magnetic field is pointing upward when viewed from above, perpendicular to the circular plane in a time of 125 ms. We need to find the average induced emf around the border of the circular region. It is given by the rate of change of magnetic flux as :

$\epsilon=\dfrac{-d\phi}{dt}\\\\\epsilon=A\dfrac{-d(B'-B)}{dt}\\\\\epsilon=\pi (1.5\times 10^{-3})^2\times \dfrac{1.5}{0.125}\\\\\epsilon=8.48\times 10^{-5}\ V$

So, the average induced emf around the border of the circular region is $8.48\times 10^{-5}\ V$ .

6 0

3 years ago

Read 2 more answers