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4 years ago

Which term describes a model in which a charge takes up no space and acts uniformly on its surroundings?

Physics

2 answers:

SVETLANKA909090 [29]4 years ago

7 0

It's called point charge. Hope this helps.

Ket [755]4 years ago

3 0

I think it’s called point charge

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An object travels 10 meters in the first second of travel, 10 meters again during the second second of travel, and 10 meters aga

11111nata11111 [884]

10m/s2 because it travels 10 meters every second

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4 years ago

Read 2 more answers

A centrifuge in a medical laboratory rotates at an angular speed of 3,500 rev/min, clockwise (when viewed from above). When swit

Ratling [72]

Answer:

The magnitude of angular acceleration is $232.38\ rad/s^2$ .

Explanation:

Given that,

Initial angular velocity, $\omega_i=3500\ rev/min=366.5\ rad/s$

When it switched off, it comes o rest, $\omega_f=0$

Number of revolution, $\theta=46=289.02\ rad$

We need to find the magnitude of angular acceleration. It can be calculated using third equation of rotational kinematics as :

$\omega_f^2-\omega_i^2=2\alpha \theta\\\\\alpha =\dfrac{-\omega_i^2}{2\theta}\\\\\alpha =\dfrac{-(366.51)^2}{2\times 289.02}\\\\\alpha =-232.38\ rad/s^2$

So, the magnitude of angular acceleration is $232.38\ rad/s^2$ . Hence, this is the required solution.

6 0

3 years ago

Complete the sentence :

Degger [83]

Answer:

a) is equal to

b) magnitude

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3 years ago

Why are microwaves beneficial to use for transmitting information

Darya [45]

Microwaves. Microwave radiation can be used to transmit signals such as mobile phone calls. ... Certain microwave radiation wavelengths pass through the Earth's atmosphere and can be used to transmit information to and from satellites in orbit

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4 years ago

An electric motor in a hair dryer is running at its normal constant operating speed and, thus, is drawing a relatively small cur

svlad2 [7]

Answer:

The temperature of the coil will increase (over heating will occur)

Explanation:

This overheating generally occurs when the motor is overloaded, when a bearing seizes up, when something locks the motor shaft and prevents it from turning, or when the motor simply fails to start properly.

Back emf is zero when the motor is not turning, and it increases proportionally to the motor's angular velocity. As the motor turns faster and faster, the back emf grows, always opposing the driving emf, and reduces the voltage across the coil and the amount of current it draws.

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3 years ago