What is the resistance of a lightbulb that draws 0.5 A when it is plugged into a 120-V outlet?

Answers

Answer 1

Answer:

Answer: 4

Explanation: Trust me

Related Questions

To dry the brakes, drive slowly in __________ and apply light pressure on your brake pedal.
The image formed by a convex spherical mirror will always bea. inverted and larger than the object.b. upright and larger than the object.c. inverted and smaller than the object.d. upright and smaller than the object.
A turntable is designed to acquire an angular velocity of 32.4 rev/s in 0.5 s, starting from rest.Find the average angular acceleration of the turntable during the 0.5 s period. Answer in units of rad/s2
How far can light travel in one year?A. 30 million km B. 10 trillion km C. 300,000 km D. 100 billion km
When used as an energy source in a nuclear power plant, uranium is burned in a similar way as one would burn wood or coal for energy. a. True b. False

Which is most likely a molecule in a wall-filling material? C6H6 Na6Ba6 NeNa HC

Answers

Answer:

C6H6

Explanation:

I took the test a while ago I think I got it right

Answer:

C6H6

Explanation:

I tried it and it worked

The temperature of 20 liters of helium gas is increased from 100°K to 300°K. If the pressure was kept constant, the new volume will be how many liters? a) 6.7 b) 30 c) 60 d) 120 e) None of these

Answers

Answer:

New volume (V2) = 60 liter

Explanation:

Given:

Amount of helium (V1) = 20 Liter

Temperature (T1) = 100°K

Temperature (T2) = 300°K

Find:

New volume (V2)

Computation:

According to Gas Law:

V1 / T1 = V2 / T2

20 / 100°K = V2 / 300°K

V2 = 60 liter

New volume (V2) = 60 liter

The flywheel of a steam engine runs with a constant angular velocity of 140 rev/min. When steam is shut off, the friction of the bearings and of the air stops the wheel in 1.9 h. (a) What is the constant angular acceleration, in revolutions per minute-squared, of the wheel during the slowdown? (b) How many revolutions does the wheel make before stopping? (c) At the instant the flywheel is turning at 70.0 rev/min, what is the tangential component of the linear acceleration of a flywheel particle that is 40 cm from the axis of rotation? (d) What is the magnitude of the net linear acceleration of the particle in (c)?

Answers

Answer:

A) α = -1.228 rev/min²

B) 7980 revolutions

C) α_t = -8.57 x 10^(-4) m/s²

D) α = 21.5 m/s²

Explanation:

A) Using first equation of motion, we have;

ω = ω_o + αt

Where,

ω_o is initial angular velocity

α is angular acceleration

t is time the flywheel take to slow down to rest.

We are given, ω_o = 140 rev/min ; t = 1.9 hours = 1.9 x 60 seconds = 114 s ; ω = 0 rev/min

Thus,

0 = 140 + 114α

α = -140/114

α = -1.228 rev/min²

B) the number of revolutions would be given by the equation of motion;

S = (ω_o)t + (1/2)αt²

S = 140(114) - (1/2)(1.228)(114)²

S ≈ 7980 revolutions

C) we want to find tangential component of the velocity with r = 40cm = 0.4m

We will need to convert the angular acceleration to rad/s²

Thus,

α = -1.228 x (2π/60²) = - 0.0021433 rad/s²

Now, formula for tangential acceleration is;

α_t = α x r

α_t = - 0.0021433 x 0.4

α_t = -8.57 x 10^(-4) m/s²

D) we are told that the angular velocity is now 70 rev/min.

Let's convert it to rad/s;

ω = 70 x (2π/60) = 7.33 rad/s

So, radial angular acceleration is;

α_r = ω²r = 7.33² x 0.4

α_r = 21.49 m/s²

Thus, magnitude of total linear acceleration is;

α = √((α_t)² + (α_r)²)

α = √((-8.57 x 10^(-4))² + (21.49)²)

α = √461.82

α = 21.5 m/s²

The atmosphere and oceans are constantly moving. Their activity is due primarily to _____. the Sun's energy the moon's gravity the earth's gravity air pressure

Answers

Answer:

It is primarily due the Sun.

Explanation:

Sun is the ultimate source of energy.

Due to the heat of Sun, the atmosphere heats up unevenly. Due to which there is a temperature difference between the two regions. As the temperature difference is maintained, the air flows, i.e., atmosphere is moving.

Similarly, water gets heat up unevenly in oceans. Due to which a temperature difference is maintained between two points in the ocean and thus the oeans are moving constantly.

Where is the water table located?A. Below the layer of bedrock
B. Under the zone of saturation
C. In the layer of bedrock
D. At the top of the zone of saturation

Answers

The Water table is located D.at the top of the zone of saturation.

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You are given two solid materials one that is organic and one that is not organic. Describe three tests you could perform to help you decide which is which.

Answers

1- which one expires faster.
2- wbich one has more health benefits.
3- and which one tastes better which is the organic.

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When going from an optically less dense medium to a more optically dense medium (such as air to water), how does the angle of incidence compare with the angle of refraction? Does the light bend towards or away from the normal? What about from a more-dense medium to a less-dense medium (water to air)?

Statement. H,, and are distinct points that are coplanar.