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Sophie [7]
3 years ago
13

What is the difference between a direct current and an alternating current?

Physics
2 answers:
DerKrebs [107]3 years ago
4 0
<span>In direct current (DC), the electric charge (current) only flows in one direction. Electric charge in alternating current (AC), on the other hand, changes direction periodically. The voltage in AC circuits also periodically reverses because the current changes direction.</span>
faltersainse [42]3 years ago
4 0

Answer: alternating current regularly reverses direction. Direct current flows in only one direction

Explanation:

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Which conversion can take place in a transformer
Naddik [55]

Answer:

D. A lower Voltage into a higher

5 0
3 years ago
Both segments of the wire are made of the same metal. Current I1 flows into segment 1 from the left. How does current I1 in segm
Andrei [34K]

Answer:

current I1 = current I2

Explanation:

since the wire is made up of the same material, from Kirchoff's current law sum of currents entering a particular node or segment of wire is equals to the sum of currents leaving that particular node or segment of wire

8 0
3 years ago
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Aliun [14]
Elements to the left tend to form positive ions is the right answer mark me brainlist
4 0
2 years ago
Every few years, winds in Boulder, Colorado, attain sustained speeds of 45.0 m/s (about 100 miles per hour) when the jet stream
emmainna [20.7K]

Answer:

271248.75 N

Explanation:

\rho = Density of air = 1.14 kg/m³

v = Velocity of wind = 45 m/s

A = Area = 235 m²

From Bernoulli's principle we have the relation

P_1-P_2=\frac{1}{2}\rho v^2\\\Rightarrow \Delta P=\frac{1}{2}1.14\times 45^2\\\Rightarrow \Delta P=1154.25\ Pa

Force is given by

F=PA\\\Rightarrow F=1154.25\times 235\\\Rightarrow F=271248.75\ N

Force due to the jet stream on the roof is 271248.75 N

6 0
3 years ago
What is the acceleration due to gravity at an altitude of 116?
Schach [20]
Gravitational acceleration (Ga) is  inversely proportional to  k / Distance^2

so Ga * Distance^2 = K

On the surface of Earth acceleration due to gravity is about 9.8m/s^2 with an average distance to the earths core of about 6371 km (Wolfram alpha).

So k = 9.8 * 6371^2
I'm presuming that your distance of 116 is km

As 
Ga = k / distance^2 

Ga = ((9.8 * 6371^2) / (6371 + 116)^2 ) = 397778481.8 / 42081169

= 9.45 m/s^2 to 2sf
7 0
3 years ago
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