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3 years ago

Electric charges can only be transferred through a process called conduction.true or false

Physics

2 answers:

umka21 [38]3 years ago

5 0

I'm going to say false hope that helped

allochka39001 [22]3 years ago

3 0

Answer: The correct answer is false.

Explanation:

The electric charges can be transferred through the processes: Conduction and induction.

Conduction: In this process, the charges move from charged body to uncharged body by touching the charged and the uncharged bodies. Here, the charges flow from one body to another until the equilibrium of the charges on both bodies is attained.

Induction: In this process, the charged body is brought near to the uncharged body but without touching these together. In this process, the charge is induced on the uncharged body.

If the negatively charged body is brought near to the uncharged body then the positively charge is induced on the uncharged body.

Therefore, the electric charges cannot only be transferred through a process called conduction. The given statement is false.

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A proton with charge 1.602 x 10^-19 C moves at a speed of 300 m/s in a magnetic field at an angle of 65 degrees. If the strength

soldi70 [24.7K]

Answer:

$F_m= 8.28 \times 10^{-16} N$

Explanation:

The magnitude of the force is $F_m=evB\sin\theta\\\implies F_m=1.602 \times 10^{-19}\times 300\times 19\times\sin 65^0= 8.28 \times 10^{-16} N$

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2 years ago

If an object has zero acceleration, does it have to have zero velocity?

adelina 88 [10]

Answer:

Yes, the velocity would also be zero.

Explanation:

Acceleration is the change in velocity over time, therefore, there has to be a change in velocity for something to accelerate. which means without acceleration, the object has no velocity.

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2 years ago

What is the equation for finding the acceleration of an object moving in a straight line?

lapo4ka [179]

The equations to find the acceleration are the suvat equations:

$v=u+at\\s=ut+\frac{1}{2}at^2\\s=vt-\frac{1}{2}at^2\\v^2-u^2=2as\\s=(\frac{u+v}{2})t$

Explanation:

The acceleration of an object is the rate if change in velocity of the object. It is calculated as

$a=\frac{v-u}{t}$

where

v is the final velocity of the object

u is the initial velocity

t is the time elapsed

For an object moving in a straight line at constant acceleration, there are several equations that can be used to find the acceleration: they are called suvat equations. They are the following:

$v=u+at\\s=ut+\frac{1}{2}at^2\\s=vt-\frac{1}{2}at^2\\v^2-u^2=2as\\s=(\frac{u+v}{2})t$

where

u is the initial velocity

v is the final velocity

t is the time

s is the distance covered

a is the acceleration

Therefore, any of the above equations can be used to calculate the acceleration.

Learn more about acceleration:

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2 years ago

WHY IS SATURN ONE OF THE COLDEST PLANETS IN OUR SOLAR SYSTEM

Usimov [2.4K]

What are the answer choices?

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3 years ago

……………………………………………………………..?

kotegsom [21]

Answer:

Explanation:

First find the electrical wattage

W = I^2 * R

R = 12 ohms

I = 2 amps

Wattage = 2^2 * 12

Wattage = 4* 12

Wattage = 48 watts.

Now you need to use the power formula

Work = Power * Time

Work = ?

Power = 48 watts

Time = 3 minutes = 3 * 60 = 180 seconds.

Work = 48 * 180

Work = 8640 J

That's C

3 0

2 years ago