PHYSICS HIGH SCHOOL

Explain why plastic comb rubbed with wool attracts pieces of paper​

Answers

Answer 1
Answer:

Answer:

Static electricity

Explanation:

Opposite charges attract each other.

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Electronic signals that are smoothly varying signals produced by continuously changing the voltage or current in a circuit area. digital signals.
b. cathode rays.
c. diode signals.
d. analog signals.

Answers

Answer: The correct answer is "analog signals".

Explanation:

Digital signal: This signal varies as 0 or 1. It is discrete signal.

Cathode rays: They are the streams of the negatively charged particles.

Diode signals: Diode is a semiconductor device. It changes the alternating signal to the direct signal.

Analog signals: In this signal, the signal is varying by continuously changing the direction voltage or current with time. It is a continuously varying signal.

In the given problem, electronic signals that are varying signals produced by continuously changing the voltage or current in a circuit are analog signals.

Therefore, the correct option is (d).
The right answer for the question that is being asked and shown above is that: "c. diode signals." Electronic signals that are smoothly varying signals produced by continuously changing the voltage or current in a circuit are diode signals.

PLEASE HELP!!!!!!!!!How do greenhouse gases affect visible and infrared light?
A.
They reflect visible light but let infrared light pass through.
B.
They reflect both visible light and infrared light.
C.
They reflect infrared light but let visible light pass through.
D.
They let both infrared light and visible light pass through.

Answers

It’s c

Because they do not affect visible it only affects infrared light

Double vision can be the result of

Answers

cross eyed can result in double vision

Two vertical springs have identical spring constants, but one has a ball of mass m hanging from it and the other has a ball of mass 2m hanging from it. Part A If the energies of the two systems are the same, what is the ratio of the oscillation amplitudes?

Answers

Answer:

(A_1)/(A_2)=1

Explanation:

given,

two identical spring have identical spring constant

mass 'm' is hanging on one spring and mass of '2m' on another wall.

energy of the two system is same

energy of the system having mass 'm'

E = (1)/(2)m\omega_1^2A_1^2

energy of the system having mass '2m'

E = (1)/(2)(2m)\omega_1^2A_1^2

now, Energy are same

(1)/(2)m\omega_1^2A_1^2= (1)/(2)(2m)\omega_1^2A_1^2

(A_1^2)/(A_2^2)=(2\omega_2^2)/(\omega_1^2)

we know k = mw^2

(A_1)/(A_2)=\sqrt{\frac{2(k)/(m_2)}{{(k)/(m_1)}}

(A_1)/(A_2)=\sqrt{(2m_1)/(m_2)}

(A_1)/(A_2)=\sqrt{(2m)/(2m)}

(A_1)/(A_2)=1

If the absolute temp of gas is 600k what is the temp in degrees celsius

Answers

The answer is 327 degrees celsius

What are the properties of metal that make it a usful material for electricians

Answers

a property of a metal is that it has delocalised electrons, electrons that are mobile and free to move throught the structure, thus a metal can conduct electricity
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