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skelet666 [1.2K]

3 years ago

15

Prominences and sunspots are both:

1 answer:

Vadim26 [7]3 years ago

8 0

Answer:

C. Influenced by the Sun's electromagnetic field

Explanation:

"Sunspots occur in pairs because each is one side of a loop of the Sun's magnetic field that reaches the Sun's surface. Solar prominences are the plasma loops that connect two sunspots."

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can you help me create a sketch of two different objects with one that has a greater density than the other?

sergey [27]

I don't know how good you are at sketching ... I'm terrible.
But you can put the point across in a dramatic way if you
can sketch a bowling ball and a basketball ... you'll need
to clearly identify them with the markings you sketch on
each ball.

They're the same shape and nearly the same size, but
there's a huge difference in their densities.

6 0

3 years ago

A light bulb is rated at 25 W when operated at 120 V. How much charge enters (and leaves) the light bulb in 1. 0 min?

aleksklad [387]

The amount of charge enters (and leaves) is 12 Coulomb.

<h3 /><h3>How can we find the value of the amount of charge enters (and leaves)?</h3>

Here we are using the formula,

$I=\frac{P}{V}$ and $Q= I \times t$

We are given,

P = Power of the light bulb = 25 Watt.

V = The amount of voltage where the light bulb operated = 120 Volt.

t= The time when charge enters (and leaves) the light bulb = 1.0 min = $(1 \times 60) second$ = 60 S

We have to find,

I= The amount of current flows in the light bulb.

Q= The amount of charge enters (and leaves) the light bulb.

Now we substitute the values of known parameters in the first equation, we find that,

$I=\frac{P}{V}=\frac{25}{120}$

Or, $I= 0.20 A$

The amount of current flows in the light bulb is 0.20 Ampere.

Now, we put the value of I in the second equation,

$Q= I \times t= 0.20 \times 60$

Or, $Q=12 C$

So, from the above calculations we can see that the amount of charge enters (and leaves) the light bulb is 12 Coulomb.

Learn more about the light bulb:

brainly.com/question/8979272

#SPJ4

3 0

2 years ago

What is the primary way that a metamorphic rock form

Virty [35]

Metamorphic rocks form from the alteration of other rocks through pressure and temperature induced changes in the minerals.

5 0

3 years ago

A baseball pitcher loosens up his pitching arm. He tosses a 0.20-kg ball using only the rotation of his forearm, 0.28 m in lengt

gayaneshka [121]

Answer:

Moment of Inertia, I = 0.016 kgm²

Explanation:

Mass of the ball, m = 0.20 kg

Length of the pitcher's arm, l = 0.28

Radius of the circular arc, r = 0.28 m

Moment of Inertia is given by the formula:

I = mr²

I = 0.20 * 0.28²

I = 0.20 * 0.0784

I = 0.01568

I = 0.016 kgm²

5 0

4 years ago

A particle is traveling in the positive direction along an x axis, at a constant 5 m/s. Which of the following describes the par

vaieri [72.5K]

1-zero as the velocity is constant

3 0

3 years ago