1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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.
You might be interested in
Which of the following is a physical change?
gladu [14]
The answer would be A
3 0
3 years ago
Read 2 more answers
What is an object’s acceleration if it is moving at 30 m/s and comes to a stop in 5 s? –30 m/s2 –6 m/s2 30 m/s2 6 m/s2
Tanya [424]

Answer:32m/s

Explanation:

3 0
3 years ago
Read 2 more answers
A 65-kg person walks from the ground to the roof of a 100 m tall building. How much gravitational potential energy does she have
ivolga24 [154]
I,think potential energy is mgh so 65*100*9,81
7 0
3 years ago
Mass m, moving at speed 2v, approaches mass 4m, moving at speed v. The two collide elastically head-on. Part A Find the subseque
meriva
Thank you for posting your question here at brainly. A mass of m moves with 2V towards in the opposite direction of a mass, 4m moving at a speed of V, the speed of m was 2/5V and the mass of 4m was 7.5V. I hope it helps.
4 0
3 years ago
Read 2 more answers
The coefficient of linear expansion of steel is 12 × 10-6 K-1 . What is the change in length of a 25-m steel bridge span when it
Westkost [7]

Answer:

0.012-m

Explanation:

∆L = α × Lo × (T-To)

α is the coefficient of linear expansion = 12 × 10-6 K-1

Lo = Initial length = 25-m

∆L = Change in length

(T-To) = 40 K

∆L = 12 × 10-6 × 25 × 40

∆L = 0.012-m

4 0
3 years ago
Other questions:
  • The density of aluminum is 2.70 g/ml. A piece of aluminum foil has a mass of 44 g. What is the volume of this piece of aluminum
    6·1 answer
  • Density is calculated by dividing the mass of an object by its volume. 
    10·2 answers
  • The purpose of a cell (battery) is to: Question 2 options: store chemical energy and transfer it to thermal energy when a circui
    12·1 answer
  • "a ________ is a mushroom-shaped pluton that forms by injecting magma between sedimentary strata, forcing the upper layers to ar
    12·2 answers
  • In the figure above, a box of mass 2.5kg is initially at rest on a rough inclined plane. Assuming the
    15·1 answer
  • It is August 1st and you are at a Science Camp in Florida. During an outdoor science quiz, you are asked to identify the tempera
    8·1 answer
  • according to newton's law of universal gravitation, in which of the following situations does the gravitational attraction betwe
    10·1 answer
  • Which energy level of the outermost in aluminum
    15·1 answer
  • The shaft of radius c is subjected to a distributed torque t, measured as torque/unit length of shaft. Shaft A B of length L, fi
    5·1 answer
  • Which equations are equivalent to 3/4+m=-7/4? Select three options.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!