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PIT_PIT [208]
3 years ago
6

Doubling the distance between you and a source of radiation decreases your exposure by:

Physics
1 answer:
Elan Coil [88]3 years ago
5 0

Given what we know, we can confirm that doubling the distance between you and a source of radiation decreases your exposure by 75%.

<h3>How is distance related to radiation exposure?</h3>
  • As expected, increasing the distance from the source of the radiation will reduce its negative effects.
  • Counter-intuitively however, doubling the distance does not reduce by half, but rather reduces its effects by 3/4th.
  • This is due to the fact that the radiation effects from the source are inversely proportional to the square of the distance.
  • This causes the changes to be far greater than expected.

Therefore, given that the radiation is proportional to the square of the distance, instead of being of a more direct relation, we can confirm that when doubling the distance between yourself and the source of the radiation, you can reduce its effects by 3/4 or 75%.

To learn more about radiation visit:

brainly.com/question/9815840?referrer=searchResults

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A planet similar to the Earth has a radius 7.4 × 106 m and has an acceleration of gravity of 10 m/s 2 on the planet’s surface. T
Lubov Fominskaja [6]

Answer:

1.5 hr

16.7

Explanation:

Zero apparent weight means there's no normal force.

Sum the forces in the centripetal direction.

∑F = ma

mg = mv²/r

v = √(gr)

v = √(7.4×10⁶ m × 10 m/s²)

v = 8602 m/s

The circumference of the equator is:

C = 2πr

C = 2π (7.4×10⁶ m)

C = 4.65×10⁷ m

So the period is:

T = C / v

T = (4.65×10⁷ m) / (8602 m/s)

T = 5405 s

T = 1.5 hr

The initial speed is:

v = C / T

v = (4.65×10⁷ m) / (25 h × 3600 s/h)

v = 517 m/s

The speed increases by a factor of:

8602 m/s / 517 m/s

16.7

3 0
3 years ago
If a personal pan pizza (6 inches in diameter) has 600 calories, how many calories would you consume if you were to eat a large
Neko [114]

Answer:

2400 calories

Explanation:

given,

diameter of pizza,d₁ = 6 inches

calories of the 6 inches pizza = 600 calories

diameter of large size of pizza, d₂ = 12 inches

calories of the 12 inches pizza = ?

Area of the 6 inches pizza

A₁ = π x 3² = 9 π

Area of the 12 inches pizza

A₂ = π x 6² = 36 π

Ratio of 12 inch pizza to 6 inches

  =\dfrac{36\pi}{9\pi}

  =\dfrac{4}{1}

calories of the pizza

\dfrac{x}{600}=\dfrac{4}{1}

    x = 2400 calories

Pizza of 12 inches is of calories is equal to 2400 calories

6 0
4 years ago
The diagram shows two dodgeballs colliding. The red arrow shows the direction of force of the moving ball striking a stationary
Helen [10]

Answer:

The second arrow from the top to the bottom

Explanation:

This can be explained by the Newton's third law.

For every action there is an equal and opposite reaction.

When an object A exert a force to an object B. Then object B also excerts a force with the same size but opposite direction to object A.

5 0
4 years ago
Read 2 more answers
How many significant figures are in 0.0069
posledela
Two significant figures, the 6 and the 9
7 0
3 years ago
A 45-mH inductor is connected in series with a 60-Ω resistor through a 15-V dc power supply and a switch. If the switch is close
egoroff_w [7]

Answer:

The current is 0.248 A

Explanation:

Given that,

Inductor L= 45\times10^{3}\ H

Resistance R= 60\Omega

Voltage = 15 volt

Time t =7.0\times10^{-3}\ sec

We need to calculate the current

Using formula of current

I=\dfrac{V}{R}(1-e^{\dfrac{-R}{L}}t)

Where, V = voltage

R = resistance

L = inductance

T = time

Put the value into the formula

I=\dfrac{15}{60}(1-e^{\dfrac{-60}{45\times10^{3}}}\times7\times10^{-3})

I=0.248\ A

Hence, The current is 0.248 A.

4 0
3 years ago
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