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Annette [7]
3 years ago
12

A nebula, or swirling cloud of interstellar dust and gases, is seen. What happens next in the star formation process?

Physics
2 answers:
AVprozaik [17]3 years ago
5 0
Atoms begin to gravitate together to form a center
geniusboy [140]3 years ago
5 0

Answer: A)Atoms begin to gravitate together to form a center.

Explanation:

A nebula is a stellar nursery where stars are born. A nebula is a cloud of dust and gases. The disk starts swirling and atoms begin to gravitate and come together. A center is formed. This center forms the core. When enough mass is gathered to generate accurate temperature and pressure, nuclear fusion reaction kicks in to produce heat and light and a star is born.

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If a 6V battery is connected to a light bulb whose resistance is 55,000Ω How much current will flow in the circuit?
notka56 [123]

Answer:

Current, I = 0.000109 Amps

Explanation:

Given the following data;

Voltage = 6V

Resistance = 55,000 Ohms

To find the current flowing through the circuit;

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

V = IR

Where;

V represents voltage measured in voltage.

I represents current measured in amperes.

R represents resistance measured in ohms.

Making current the subject of formula, we have;

I = \frac {V}{R}

Substituting into the formula, we have;

I = \frac {6}{55000}

Current, I = 0.000109 Amps

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3 years ago
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Answer:

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Explanation:

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3 years ago
Find the object's speeds v1, v2, and v3 at times t1=2.0s, t2=4.0s, and t3=13s.
Burka [1]
Since this is a distance/time graph, the speed at any time is the slope
of the part of the graph that's directly over that time on the x-axis.

At time  t1 = 2.0 s
That's in the middle of the first segment of the graph,
that extends from zero to 3 seconds.
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At time  t2 = 4.0 s
That's in the middle of the horizontal part of the graph
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Its slope is zero.
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At time  t3 = 13 s.
That's in the middle of the part of the graph that's sloping down,
between 11 and 16 seconds.
Its slope is  -3/5 .            v3 = -0.6 m/s .              
7 0
2 years ago
Read 2 more answers
Two friends whisper at a volume of 20 decibels. Later, they converse at a volume of 40 decibels.
Yuki888 [10]
40 dB is 20 dB more power than 20 dB is. 20 dB more means 100 times as much.
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2 years ago
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