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3 years ago

Which statement best describes resistance? Resistance is

Physics

2 answers:

qaws [65]3 years ago

7 0

Resistance is how well a material conducts an electrical charge and is measured in ohms.

ivolga24 [154]3 years ago

7 0

Answer:

How well a material conducts an electrical charge and is measured in ohms.

Explanation:

Resistance is the property of a conductor which opposes the flow of electric current. Its SI unit is ohms and represented by $\Omega$ . According to Ohm's law voltage is directly proportional to the current flowing through the circuit.

It depends directly on the length of the conductor and inversely on its area of cross section. It measure how well a material conducts an electrical charge. Hence, the correct option is (b).

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A merry-go-round spins freely when Diego moves quickly to the center along a radius of the merry-go-round. As he does this, it i

kaheart [24]

Answer:

The moment of inertia of the system decreases and the angular speed increases.

Explanation:

This very concept might not seem to be interesting at first, but in combination with the law of the conservation of angular momentum, it can be used to describe many fascinating physical phenomena and predict motion in a wide range of situations.

In other words, the moment of inertia for an object describes its resistance to angular acceleration, accounting for the distribution of mass around its axis of rotation.

Therefore, in the course of this action, it is said that the moment of inertia of the system decreases and the angular speed increases.

5 0

3 years ago

How do gases respond to changes in pressure and temperature?

kakasveta [241]

They compress or expand depending on amount of pressure or depending on the temperature

6 0

3 years ago

Read 2 more answers

What is the net work doneon the object over the distance shown?

GuDViN [60]

$A)F_0d$

Explanation

If you graph the force on an object as a function of the position of that object, then the area under the curve will equal the work done on that object, so we need to find the area under the function to find the work

Step 1

find the area under the function.

Area:

$\text{Area}=rec\tan gle_{green}+triangle_{gren}-triangle_{red}$ $\begin{gathered} \text{the area of a rectangle is given by} \\ A_{rec}=lenght\cdot widht \\ \text{and} \\ \text{the area of a triangle is given by:} \\ A_{tr}=\frac{base\cdot height}{2} \end{gathered}$

$\begin{gathered} \text{Area}=rec\tan gle_{green}+triangle_{gren}-triangle_{red} \\ \text{replace} \\ \text{Area}=(F_0\cdot d)+\frac{(F_0\cdot d)}{2}-\frac{(F_0\cdot d)}{2} \\ \text{Area}=(F_0\cdot d) \\ Area=F_0d \end{gathered}$

therefore, the answer is

$A)F_0d$

I hope this helps you

4 0

1 year ago

The power of motor is 50 w the motor drags a 2 object horizontally at a constant speed of 10m/s along a rough floor . What is th

Ilia_Sergeevich [38]

Frictional force between the object and the floor=5 N

Explanation:

power= 50 W

velocity= 10 m/s

power= force * velocity

50=F * 10

F=50/10

F=5 N

Thus the force of friction= 5 N

5 0

3 years ago

Which type of mirror produces images that are always upright and at the same distance from the mirror as the object is?

Alex73 [517]

Well, that would be a plane (flat) mirror
provided that 
the mirror and the object are oriented parallel to each other

7 0

3 years ago

Read 2 more answers