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Nuetrik [128]
3 years ago
5

Switches, flashers, and similar devices controlling transformers and electronic power supplies shall be rated for controlling in

ductive loads or have a current rating not less than ___ percent of the current rating of the transformer.
a. twice

b. three

c. two and one-half

d. four
Physics
1 answer:
Reika [66]3 years ago
5 0

Answer:

Option A - twice

Explanation:

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What is a metallic bond and how does it hold metals together?
Marysya12 [62]

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Force that holds atoms together in a metallic substance.

Explanation:

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2 years ago
If you know that the period of a pendulum is 1.87 seconds, what is the length of that pendulum? (assume that we are on earth and
laiz [17]

The length of the pendulum is 0.087 m. Option d is correct.

<h3>What is Simple harmonic motion?</h3>

Simple harmonic motion is periodic motion caused by a restoring force that is proportionate to the deviation from equilibrium.

Simple harmonic motion is periodic motion but many other conditions are dependent.

The time period of the pendulum is found as;

\rm T= 2 \pi \sqrt{\frac{L}{g} } \\\\ \rm 1.87 \ sec= 2 \times 3.14  \sqrt{\frac{L}{9.81 m/s^2} } \\\\ L=0.087 \ m

The length of the pendulum is 0.087 m

Hence, option d is correct.

To learn more about the simple harmonic motion refer to the link;

brainly.com/question/17315536

#SPJ1

4 0
3 years ago
Calculate the impulse of a 1kg box that starts from rest and accelerates to 50m/s over a period of 10 seconds.
fomenos

Answer:

please find attached pdf

Explanation:

Download pdf
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3 years ago
Waldo needs to know how much force to apply in order to move a 4000-kg object at 2 m/S2. Which law should he refer to
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3 years ago
What is the energy required to raise the temperature of 1 g of a substance by 1°c or 1 k?
lesya692 [45]

Answer:

Specific heat

Explanation:

The specific heat is the amount of heat, that is energy in transfer to or from a thermodynamic system, required to raise the temperature of 1 g of substance by one degree Celsius or one Kelvin, since one degree on the Celsius scale is equal to one Kelvin.

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