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3 years ago

Which statement describes how work and power are similar?

2 answers:

6 0

The statement that describes how work and power are similar is D. you must know time and energy to calculate both.
I am not completely sure though, so I hope this helps. :)

sertanlavr [38]3 years ago

6 0

Which statement describes how work and power are similar?

Answer: Out of all the options shown above the one that best describes how work and power are similar is answer choice A) You must know force and distance to calculate both. The reason being that work equals force X distance and power equals work/time.

I hope it helps, Regards.

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An 1,840 W toaster, a 1,460 W electric frying pan, and a 50 W lamp are plugged into the same outlet in a 15 A, 120 V circuit. (T

shutvik [7]

Answer:

Explanation:

Given

Power drawn by toaster $P_1=1840\ W$

Power drawn by Electric fan $P_2=1460\ W$

Power drawn by lamp $P_3=50\ W$

Voltage applied $V=120\ V$

If appliances are applied in parallel then Voltage applied is same

Power is given by $P=\frac{V^2}{R}$

Resistance of toaster $R_1=\frac{120^2}{1840}=7.82\ \Omega$

Resistance of electric Fan $R_2=\frac{120^2}{1460}=9.86\ \Omega$

Resistance of toaster $R_3=\frac{120^2}{50}=288\ \Omega$

Current is given by

$I=\frac{V}{R}$

$I_1=\frac{120}{7.82}=15.34\ A$

$I_2=\frac{120}{9.86}=12.17\ A$

$I_3=\frac{120}{288}=0.416\ A$

7 0

3 years ago

Read 2 more answers

What do microwaves and x-rays have in common? They are visible. They are mechanical waves that require a medium. They are part o

jolli1 [7]

Answer:

They are part of the electromagnetic spectrum

Explanation:

The electromagnetic spectrum consists of the following:

Gamma Rays HIGH FREQUENCY, SHORT WAVELENGTH

Ultraviolet Rays

Visible Light

Infrared Rays

<em>Microwaves</em>

Radio Waves LOW FREQUENCY, LONG WAVELENGTH

6 0

2 years ago

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Which cell responds most strongly to a stimulus moving perpendicular to its axis??

AlladinOne [14]

Complex cells are the types of cells that respond most strongly to a stimulus moving perpendicular to its axis.

This is because like simple cell, a complex cell will respond primarily to oriented edges and rating but it has a specific degree of spatial variance. This means its own receptive field cannot be mapped into fixed excitatory and inhiborty zone. Rather, it will respond to patterns of light in a specific orientation within a large field of reception, regardless of its location. Some of these complex cells respond optimally only to a movement in a certain or specific direction.

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3 years ago

A capacitor with an initial potential difference of 100 V isdischarged through a resistor when a switch between them is closed a

jonny [76]

Answer:

(a). The time constant of the circuit is 2.17.

(b). The potential difference across the capacitor at t=17.0 s is 0.0396 V.

Explanation:

Given that,

Initial potential difference = 100 V

Potential difference across the capacitor = 1.00 V

(a). We need to calculate the time constant of the circuit

Using formula of potential difference

$V(t)=V_{0}e^{\dfrac{-t}{RC}}$

Put the value into the formula

$1.00=100e^{\dfrac{-10.0}{RC}}$

$0.01=e^{\dfrac{-10.0}{RC}}$

On taking ln

$ln(0.01)=\dfrac{-10}{RC}$

$RC=\dfrac{-10}{ln(0.01)}$

$RC=2.17$

(b). We need to calculate the potential difference across the capacitor at t=17.0 s

Using formula again

$V(17)=100e^{\dfrac{-17}{2.17}}$

$V{17}=0.0396\ V$

Hence, (a). The time constant of the circuit is 2.17.

(b). The potential difference across the capacitor at t=17.0 s is 0.0396 V.

7 0

3 years ago

1. A person walks 50 meters north, and then travels 150 meters to the south. What is the total distance they travelled? What is

Illusion [34]

Answer:

Total: 200 meters, Displacement: 100 meters South

Explanation:

First, add up the meters traveled to get the total distance.

50m + 150m = 200m

Lastly, displacement is the shortest distance from the initial position to the final position. The person first walked 50 meters north but then traveled 150 meters south. Therefore, their displacement was 100 meters south.

50m - 150m = -100m

(Note: Directions are vectors. North and East are positive vectors while South and West are negative)

8 0

2 years ago