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2 years ago

What's Inertia ????☁️☁️

Physics

1 answer:

Assoli18 [71]2 years ago

3 0

Explanation:

the inability to change the position from rest to motion or motion to rest by themselves is inertia.

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A 120-V rms voltage at 1000 Hz is applied to an inductor, a 2.00-μF capacitor and a 100-Ω resistor, all in series. If the rms va

natima [27]

Answer:

The inductance of the inductor is 35.8 mH

Explanation:

Given that,

Voltage = 120-V

Frequency = 1000 Hz

Capacitor $C= 2.00\mu F$

Current = 0.680 A

We need to calculate the inductance of the inductor

Using formula of current

$I = \dfrac{V}{Z}$

$Z=\sqrt{R^2+(L\omega-\dfrac{1}{C\omega})^2}$

Put the value of Z into the formula

$I=\dfrac{V}{\sqrt{R^2+(L\omega-\dfrac{1}{C\omega})^2}}$

Put the value into the formula

$0.680=\dfrac{120}{\sqrt{(100)^2+(L\times2\pi\times1000-\dfrac{1}{2\times10^{-6}\times2\pi\times1000})^2}}$

$L=35.8\ mH$

Hence, The inductance of the inductor is 35.8 mH

4 0

2 years ago

Read 2 more answers

A tide of increased range that occurs during the new and full moons is called

irina [24]

A tide of increased range that occurs during the new and full moons is called Spring Tide.

4 0

2 years ago

A steel block has a volume of 0.08m³ and a density of 7,840kg/m³. What is the force of gravity acting on the block (the weight)

aliina [53]

Density =mass/volume
Mass=density *volume
=7840*0.08
=627.2kg

Force=mass*g
=627.2*9.81
=6152.8N

7 0

2 years ago

Usually wire resistance can be neglected. But we see the effect of it sometimes when a light dims as another high-current device

tangare [24]

Please find the figure attached below:

Answer:

a.Resistance of bulb= $R_{2}$ =192 ohm

b.power consumed by bulb after motor disconnection=74.609 W

Explanation:

a.Resistance of bulb= $R_{2}$ =?

As we know that $P=\frac{P^{2} }{R}$

putting R as resistance of bulb i.e. $R=R_{2}$

$P=\frac{V^{2}}{R_{2} }\\R_{2}=\frac{V^{2}}{P} \\ R_{2}=\frac{(120)^{2} }{75}\\ R_{2}=192ohm$

b.power consumed by bulb after motor disconnection?

from the figure we see that $R_{1}\ and\ R_{2}$ are in series so

$R_{eq}=R_{1} +R_{2} \\R_{eq}=192+0.5\\R_{eq}=192.5ohm$

current through their resistance is

$I_{eq}=\frac{V}{R_{eq} }\\ I_{eq}=\frac{120}{192.5 } \\I_{eq}=0.6233A$

Power consumed by bulb is

$P_{b} =I^{2}R\\\\ P_{b} =(0.6233)^{2}(192)\\\\P_{b} =74.609W$

3 0

2 years ago

Un bloque de 750 kg es empujado hacia arriba por una pista inclinada 15º respecto de la horizontal. El coeficiente de rozamiento

kotegsom [21]

Answer:

4776.98 N is the minimum force to start the rise.

Explanation:

We can use the first Newton's law to find the minimum force to move the block.

So we will have:

$F-W_{x}-F_{f}=0$

Where:

F is the force
W(x) is the weight of the block in the x direction, W = mg*sin(15)
F(f) is the static friction force (F(f) = μN), μ is the static friction coefficient 0.4.

$F=W_{x}+F_{f}=mgsin(15)+\mu N$

$F=mgsin(15)+\mu mgcos(15)$

$F=mg(sin(15)+\mu cos(15))$

$F=750*9.81(sin(15)+0.4*cos(15))$

$F=4776.98 N$

Therefore 4776.98 N is the minimum force to move the block.

I hope it helps you!

8 0

2 years ago

What's Inertia ????☁️☁️​

What's Inertia ????☁️☁️