3 years ago

What form is Radium usually found in nature?

1 answer:

8 0

Radium can be found in the carnotite sands of Colorado. Greater amounts can be found in a region of Canada known as the Great Bear Lake. Radium can also be found in large amounts in some African countries, such as Zaire.

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How much power does the athlete produce if he has 28,056J of work over 45s?

Jlenok [28]

Explanation:

Power = Work done ÷ Time

P = 28056 ÷ 45 Watt

P = 623.46 Watt

5 0

2 years ago

We are going to focus on the gravitational force between Earth and our Moon. The Earth has a mass of about 6 x 10/24 kg and the

Basile [38]

Answer

Gravity is what holds us down on the earth's (or moon's) surface. If you were to weigh yourself on a scale on Earth and then on the moon, the weight read on the moon would be 1/6 your earth weight

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3 years ago

An induced emf is produced inA. a closed loop of wire when it remains at rest in a nonuniform static magnetic field.B. a closed

Kazeer [188]

Answer:

C. a closed loop of wire moving at constant velocity in a nonuniform static magnetic field.

Explanation:

As we know by Faraday's law that rate of change in magnetic flux will induce EMF

so mathematically we can say that

$EMF = \frac{d\phi}{dt}$

so we will have

$\phi = B.A$

so EMF will be induced if the flux linked with the closed loop will change with time.

So here correct answer will be

C. a closed loop of wire moving at constant velocity in a nonuniform static magnetic field.

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4 years ago

Which causes a rainbow in the sky?

mylen [45]

The answer is B. Sunlight (white light) refracts when it passes through droplets of water in the atmosphere

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4 years ago

How much more matter is in a golf ball than a ping pong?

melisa1 [442]

Explanation:

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3 years ago