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1 year ago

7

is described as the sum of all the individual resistances in a series.1) Equivalent resistance2) Parallel circuit3) Series circu

it4) Short circuit

1 answer:

irga5000 [103]1 year ago

6 0

The sum of all resistances in the series circuit is known as Equivalent resistance.

$R=r_1+r_2+.\ldots.r_n$

where R is the equivalent resistance.

Hence, option 1 is the correct answer.

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What is an “equilibrium temperature”?

RSB [31]

Answer:

One may assume that the planet radiates energy like a blackbody at some temperature according to the Stefan–Boltzmann law. Thermal equilibrium exists when the power supplied by the star is equal to the power emitted by the planet. The temperature at which this balance occurs is the planetary equilibrium temperature.

Explanation:

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3 years ago

The way to earn a college diploma is by?

Morgarella [4.7K]

Going to college and passing all your classes

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4 years ago

Read 2 more answers

a toy car travels from A to B at constant speed 30km/hr and without stopping at B return A at constant speed v. if the average s

adelina 88 [10]

Answer:

Speed BA = 18 km/hr.

Explanation:

Given the following data;

Speed AB = 30km/hr

Speed BA = x km/hr

Average speed = 24 km/hr

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Average speed = (Speed AB + Speed BA)/2

Substituting into the equation, we have

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4 0

3 years ago

A car accelerates in the +x direction from rest with a constant acceleration of a1 = 1.76 m/s2 for t1 = 20 s. At that point the

alex41 [277]

Answer:

(a) $v_1 = a_1t_1 = 1.76 t_1$

(b) It won't hit

(c) 110 m

Explanation:

(a) the car velocity is the initial velocity (at rest so 0) plus product of acceleration and time t1

$v_1 = v_0 + a_1t_1 = 0 +1.76t_1 = 1.76t_1$

(b) The velocity of the car before the driver begins braking is

$v_1 = 1.76*20 = 35.2m/s$

The driver brakes hard and come to rest for t2 = 5s. This means the deceleration of the driver during braking process is

$a_2 = \frac{\Delta v_2}{\Delta t_2} = \frac{v_2 - v_1}{t_2} = \frac{0 - 35.2}{5} = -7.04 m/s^2$

We can use the following equation of motion to calculate how far the car has travel since braking to stop

$s_2 = v_1t_2 + a_2t_2^2/2$

$s_2 = 35.2*5 - 7.04*5^2/2 = 88 m$

Also the distance from start to where the driver starts braking is

$s_1 = a_1t_1^2/2 = 1.76*20^2/2 = 352$

So the total distance from rest to stop is 352 + 88 = 440 m < 550 m so the car won't hit the limb

(c) The distance from the limb to where the car stops is 550 - 440 = 110 m

8 0

3 years ago

Several days after snowfall , the roofs of some homes on your street have almost no snow on them, while the roofs on other homes

Alina [70]

Explanation:

This due to thermal insulation of some of the roof.

An insulator is body is a poor conductor of heat and will require high thermal energy to cause temperature changes.

A house with a roof that is thermally insulated will have poor heat conduction.
Since little heat is conducted, there wont be enough thermal energy to melt the snow.
Thermal energy is directly related to heat.
A house that is not insulated will absorb a lot of heat.
This will cause the snow to melt very fast.

Learn more:

Electrical conductors and insulators brainly.com/question/3874443

#learnwithBrainly

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3 years ago