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otez555 [7]
3 years ago
9

Facts about sunspots

Physics
2 answers:
spayn [35]3 years ago
6 0
Sunspots<span> are temporary </span>phenomena<span> on the </span>photosphere<span> of the </span>Sun<span> that appear as dark spots compared to surrounding regions. They are areas of reduced surface temperature caused by concentrations of </span>magnetic field flux<span> that inhibit </span>convection<span>. Sunspots usually appear in pairs of opposite magnetic </span>polarity.
AveGali [126]3 years ago
3 0
A sunspot is vert bad.
Sunspots can is a sign of skin cancer.
Skin cancer leads to death.
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Which subatomic particle has a positive charge?
VMariaS [17]
The answer is protons
Electrons have negative charge and neutrons have 0 charge
6 0
3 years ago
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If a car is traveling 103 miles per hour, how many miles and how much time would it take for another car to catch up to them fro
pentagon [3]

Answer:

Required distance is 103 miles and the required time is 1 hour

Explanation:

Given;

speed of the car, v = 103 miles per hour

Speed is the given as the ratio of distance traveled to time taken for the motion.

The distance it will take another car to catch up to them from a complete stop is 103 miles and the time it will take the car is 1 hour.

Therefore, required distance is 103 miles and the required time is 1 hour.

3 0
3 years ago
Which graph showing constant acceleration correctly places the independent and dependent variables?
svp [43]
Do you have a picture
6 0
3 years ago
7. The energy source used to produce most of the electrical energy in the United States is ____________________.
Fudgin [204]

Fossil fuels like coal, natural gas and oil.

Hopes this helps!

4 0
3 years ago
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9. A radioisotope has a half-life of 4.50 min and an initial decay rate of 8400 Bq. What will be
Akimi4 [234]

Answer:

525 Bq

Explanation:

The decay rate is directly proportional to the amount of radioisotope, so we can use the half-life equation:

A = A₀ (½)^(t / T)

A is the final amount

A₀ is the initial amount,

t is the time,

T is the half life

A = (8400 Bq) (½)^(18.0 min / 4.50 min)

A = (8400 Bq) (½)^4

A = (8400 Bq) (1/16)

A = 525 Bq

8 0
3 years ago
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