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3 years ago

When asked to describe resistance you say, "It is an object's ability to

Physics

2 answers:

Vesnalui [34]3 years ago

8 0

Accept the flow of current and is measured in ohms

11111nata11111 [884]3 years ago

5 0

The correct answer to the question is - oppose the flow of current through substances.

EXPLANATION:

From Ohm's law, we know that current [ I ] flowing a wire is directly proportional to the potential difference [ V ] maintained across the two ends of the conductor at constant temperature and pressure.

Mathematically V ∝ I .

⇒ V = IR .

Here, R is the proportionality constant called resistance of the wire.

From above, we see that current flowing through a wire is inversely proportional to the resistance. It means that the current flow will be less with the increase of resistance of the wire.

Hence, resistance can be defined as the opposition to the flow of current in an electric wire.

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If the architectural plans show the rough opening of a window to be 3'-3" x 4'-9" , the height of the opening should actually me

tatyana61 [14]

Answer:

height of the opening actually measure is 4'-9"

Explanation:

given data

window size = 3'-3" x 4'-9"

solution

height of the opening should actually measure will be 4'-9" in 3'-3" x 4'-9"

because according to architectural plan height can not be more than the opening size of window

and we can't take smaller height also

so fit in opening window we should take same height of height of opening window and that is here 4'-9"

so here height of the opening actually measure is 4'-9"

5 0

3 years ago

If Chris drives 27 km N and then 40 km E , what is the distance and displacement

Bas_tet [7]

The answer would be 13.

3 0

4 years ago

A student is running to catch the campus shuttle bus, which is stopped at the bus stop. The student is runnign at a constant spe

Serggg [28]

Answer:

Part a)

$t = 16.8 s$

$d = 100.8 m$

Part b)

$v_f = 2.86 m/s$

Explanation:

Part a)

Constant speed by which the student will run is given as

$v = 5 m/s$

now after some time if student is going to overtake the position of bus

so here the final positions will be same

so we have

$x_{bus} = x_{student}$

$0 + \frac{1}{2}at^2 + d = v_{student} t$

$\frac{1}{2}(0.170)t^2 + 60 = 5 t$

$0.085 t^2 - 5t + 60 = 0$

so it is

$t = 16.8 s$

So student will run the total distance

$d = vt$

$d = (6)(16.8)$

$d = 100.8 m$

Part b)

Speed of bus when student reach the bus is given as

$v_f = v_i + at$

$v_f = 0 + (0.170)(16.8)$

$v_f = 2.86 m/s$

4 0

4 years ago

Explain how the extension of a spring is determined

fgiga [73]

Answer:

For a given spring the extension is directly proportional to the force applied For example if the force is doubled, the extension doubles When an elastic object is stretched beyond its limit of proportionality the object does not return to its original length when the force is removed

Explanation:

6 0

3 years ago

The relationship between sharks and remoras is characterized<br><br>TRUE <br> OR<br>FALSE

Damm [24]

False, sharks and remoras have a symbiotic relationship. The remora removes parasites from the sharks scales, and the shark provides protection for the remora

8 0

3 years ago