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makvit [3.9K]
3 years ago
11

A good way to de-magnetize something is to

Physics
2 answers:
FromTheMoon [43]3 years ago
8 0

Answer:

B. place it in a magnetic field

Ipatiy [6.2K]3 years ago
5 0

Answer:heat it

Explanation:

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2) If the current in any circuit reach to infinity then its resistance becomes
sveta [45]

Given that,

Current = ∞

We know that,

Ohm's law :

Ohm's law is defined as,

The voltage of the circuit is directly proportional to the current of the circuit.

V\propto I

Or,

The voltage of the circuit is equal to the product of current and resistance.

In mathematically,

V=IR

Where, V = voltage

I = current

R = resistance

According to ohm's law,

The current in the circuit is

I=\dfrac{V}{R}

If the current is very less then the resistance will be infinity.

If the is reach to infinity then the resistance will be very low.

Hence, The resistance becomes very low.

3 0
3 years ago
All of the following are examples of ways to improve energy efficiency of heating systems, except _______.
Yuri [45]

Answer:

D. Opening the front door in winter to filter and clean warm ai

Explanation:

All of the following are examples of ways to improve energy efficiency of heating systems, except _______.

A. Closing off rooms that aren’t in use.

B. Frequently cleaning the furnace filter.

C. Fixing cracks in the walls and floor.

D. Opening the front door in winter to filter and clean warm air

for an heating systems it is better to keep the front door shut so that all the heat energy does not escape outside.

when heat energy is within a closed system ,it can still be utilized to keep the inhabitants warm otherwise there will be an exchange with the cold from winter fall outside the air, and the heating system's efficiency will be reduced

5 0
3 years ago
Which best describes what forms in nuclear fission?A. two smaller, more stable nucleiB. two larger, less stable nucleiC. one sma
Step2247 [10]

Answer:B. two larger, less stable nuclei

Explanation: They collied and don't combine

4 0
3 years ago
Read 2 more answers
Communications satellites are placed in orbits so that they always remain above the same point of the earth's surface.A Part com
masya89 [10]

Answer:

24 hours

7\times 10^{-5}\ rad/s

Explanation:

If a satellite is in sync with Earth then the period of each satellite is 24 hours.

T=24\times 60\times 60\ s

Angular velocity is given by

\omega=\dfrac{2\pi}{T}\\\Rightarrow \omega=\dfrac{2\pi}{24\times 60\times 60}\\\Rightarrow \omega=7\times 10^{-5}\ rad/s

The angular velocity of the satellite is 7\times 10^{-5}\ rad/s

3 0
3 years ago
An amusement ride consists of a car moving in a vertical circle on the end of a rigid boom. The radius of the circle is 10 m. Th
AveGali [126]

Answer:

3.7 kN (Up)

Explanation:

7 0
3 years ago
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