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2 years ago

5

A particular lightbulb is designed to consume 40 W when operating on a car's 12-V DC electric power. If you supply that bulb wit

h 12-V AC power from a transformer, how much power will it consume

1 answer:

Andrew [12]2 years ago

4 0

40V because it will provide the same amount of power.

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Lasers can be constructed that produce an extremely high intensity electromagnetic wave for a brief time—called pulsed lasers. T

MAVERICK [17]

Explanation:

It is given that,

Maximum electric field, $E=10^{11}\ V/m$

Time taken, $t=1\ ns=10^{-9}\ s$

(a) Maximum magnetic field, $B=\dfrac{E}{c}$

$B=\dfrac{10^{11}\ V/m}{3\times 10^8\ m/s}$

B = 333.33 T

(b) Intensity of beam, $I=\dfrac{E^2}{2\mu_o c}$

$I=\dfrac{(10^{11})^2}{2\times 4\pi \times 10^{-7}\times 3\times 10^8}$

$I=1.32\times 10^{19}\ W/m^2$

(c) Energy delivered by the pulse, $E=I\times A\times t$

$E=1.32\times 10^{19}\times 10^{-6}\times 10^{-9}$

E = 13200 J

Hence, this is the required solution.

8 0

3 years ago

To provide some perspective on the dimensions of atomic defects, consider a metal specimen that has a dislocation density of 105

-Dominant- [34]

Explanation:

LD₁ = 10⁵ mm⁻²

LD₂ = 10⁴mm⁻²

V = 1000 mm³

Distance = (LD)(V)

Distance₁ = (10⁵mm⁻²)(1000mm³) = 10×10⁷mm = 10×10⁴m

Distance₂ = (10⁹mm⁻²)(1000mm³) = 1×10¹² mm = 1×10⁹ m

Conversion to miles:

Distance₁ = 10×10⁴ m / 1609m = 62 miles

Distance₂ = 10×10⁹m / 1609 m = 621,504 miles.

7 0

3 years ago

Read 2 more answers

Question #1 how many miles per hour did usain bolt run? pleaseee serious answers only!!

Nookie1986 [14]

Going to walk my dog I will help when I get back lol

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3 years ago

A(n) ________________________ is a molecule that is soluble in both polar and nonpolar solvents.

Alex

Answer: ethanol which will dissolve in both water (a polar solvent) and gasoline (a non-polar solvent)

Explanation:

3 0

3 years ago

The speed of light in ________ is about 230 million m/s.

Vladimir [108]

Answer:

Water

Explanation:

The speed of light in water is about 230 million m/s.

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3 years ago