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2 years ago

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What are disadvantages and advantages of parallel circuits

1 answer:

kozerog [31]2 years ago

4 0

Well,

Parallel circuits are circuits that have only one "line" running through all the appliances in the circuit.

A parallel circuit can be more advantageous to a series circuit because you do not have to use as much wire.

However, the fact that the current must run through every appliance could be a problem. The most common is when an appliance (say a light bulb) wears out or breaks.

There is no longer a complete connection, and we now have an open circuit.

The parallel circuit I find the most annoying is Christmas Tree lights, where when one light bulb goes bad, all the other bulbs in that line go out.

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Ryan and Becca are moving a folding table out of the sunlight. A cup of lemonade, with the message 0.44 kg is on the table. Becc

jarptica [38.1K]

Calculate the weight of the table through the equation,

W = mg

where W is the weight, m is the mass, and g is the acceleration due to gravity. Substituting the known values,
W = (0.44 kg)(9.8 m/s²)
<em>W = 4.312 N</em>

The components of this weight can be calculated through the equation,

Wx = W(sin θ)

and Wy = W(cos θ)

x - component:
Wx = W(sin θ)
Substituting,
Wx = (4.312 N)(sin 150°) = <em>2.156 N</em>

Wy = (4.312 N)(cos 150°) =<em> -3.734 N</em>

6 0

2 years ago

A sharpening wheel is traveling at 5 rad/s, it slows down to rest in 30 seconds while sharpening an axe. What is its angular acc

Ratling [72]

Answer:

Angular acceleration $= 0.167$ rad/s^2

Explanation:

Given

Initial Angular velocity (w1) $= 5$ rad/s

Final Angular velocity (w2) $= 0$ rad/s

Time taken to change velocity from w1 to w2 $= 30$ seconds

Angular acceleration is equal to the change in angular velocity to the time taken for making thing change

Hence, Angular acceleration

$\frac{w_2 -w_1}{t} \\\frac{5-0}{30}\\0.167$ rad/s^2

3 0

2 years ago

An ice dancer with her arms stretched out starts into a spin with an angular velocity of 1.00 rad/s. Her moment of inertia with

Olenka [21]

Answer:

A) 0.957 J

Explanation:detailed explanation and calculation is shown in the image below

8 0

2 years ago

The absolute pressure, in kilopascals, a depth 10m below sea level is most nearly?

saul85 [17]

Answer:

option A

Explanation:

given,

depth of the sea level = 10 m

g = 10 m/s²

Pressure underwater = ?

we know,

P = ρ g h

where ρ is the density of water which is equal to 1000 kg/m³

h is the depth of sea level

P = ρ g h

P = 1000 x 10 x 10

P = 100000 Pa

P = 100 kPa

Hence, the correct answer is option A

8 0

2 years ago

If a rock is thrown upward on the planet mars with a velocity of 14 m/s, its height (in meters) after t seconds is given by h =

crimeas [40]

<u>Answer:</u>

Velocity of rock after 2 seconds = 6.56 m/s

<u>Explanation:</u>

We have equation of motion , $s= ut+\frac{1}{2} at^2$ , s is the displacement, u is the initial velocity, a is the acceleration and t is the time.

Here height of rock in meters, h = $14t-1.86t^2$

Comparing both the equations

We will get initial velocity = 14 m/s(already given) and $\frac{1}{2} a = -1.86$

So, Acceleration, a = -3.72 $m/s^2$

Now we have equation of motion, v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration and t is the time taken.

When time is 2 seconds we need to find final velocity.

v = 14 - 3.72 * 2 = 6.56 m/s.

So, Velocity of rock after 2 seconds = 6.56 m/s

6 0

2 years ago