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ValentinkaMS [17]
3 years ago
12

What is the difference between direct current and alternating current?

Physics
2 answers:
Elan Coil [88]3 years ago
6 0
Direct currents flow in one direction, while in alternating currents the flow could change/alternate.
IRINA_888 [86]3 years ago
5 0
In a direct current, the electric charge, or current, only flows in one direction. In an alternating current, the electric charge changes periodically.  
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kinetic

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kinetic energy is powered by motion or gravity the steeper the hill is the faster a ball will roll

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2 years ago
What happens to the speed of light as it passes into a glass block?
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<h3>♫ - - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ♫</h3>

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3 years ago
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Which can do work faster-a 700 watt gasoline engine or a 300 watt electric motor
iogann1982 [59]

"700 watts" means 700 joules of work per second.

"300 watts" means 300 joules of work per second.

If the labels on both machines are true, and both machines
are loaded to their full capacity, then the 700-watt engine
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3 0
3 years ago
A uniform 1.6-kg rod that is 0.89 m long is suspended at rest from the ceiling by two springs, one at each end. Both springs han
artcher [175]

Answer:

8.27°

Explanation:

To angle difference will be determined by the difference in the displacement of the springs, produced by the weight of the center of mass of the rod.

d=y_1-y_2=\frac{F_1}{k_1}-\frac{F_2}{k_2}=\frac{0.5mg}{31N/m}-\frac{0.5mg}{63N/m}\\\\d=0.5(1.6kg)(9.8m/s^2)[\frac{1}{31N/m}-\frac{1}{63N/m}]=0.128m

by a simple trigonometric relation you obtain that the angle:

sin\theta=\frac{d}{l}=\frac{0.128m}{0.89m}=0.144\\\\\theta=sin^{-1}(0.144)=8.27\°

hence, the angle between the rod and the horizontal is 8.27°

4 0
2 years ago
What is the sum of 231 + 5080 + 80 + 13 + 9​
Gemiola [76]

Answer:

5413

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add them up

6 0
3 years ago
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