A fan uses 7A when connected to a 110V line. If electric power costs 10 cents per kilowatt-hour in this location, what is the cost of running the fan for 13 hours?

Answers

Answer 1

Answer: Power = current x voltage

So the power is 7 x 110 = 770 W = 0.77kW

0.77 x 13 = 10.01 kWh

10.01 x 10 cents = 100.1 cents (is this 1 dollar? Idk I use a different currency)

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Most of the stars in the Milky Way will end their lives as

Answers

Most of the stars in the Milky Way will end their lives as white dwarfs

Most of the stars in the Milky Way will end their lives as white dwarfs.

What is the KE of a bird, mass 40g flying at 23m/s?

Answers

Answer:

230

Explanation:

You do Ke = kinetic times distance divide by mass

A force of 15 newtons is applied to both Object A with a mass of 25 kilograms and Object B with a mass of 50 kilograms. What is true about the acceleration of Object A and Object B?

Answers

To analyze the differences in acceleration of the two objects, a necessary formula/relation to remember here is force = mass * acceleration. Given the different data in the problem, we can solve for the acceleration of each object. This is shown below:

Force = 15 N
M1 = 25 kg
M2 = 50 kg
a1 = ?
a2 = ?

For object 1:

15 N = 25 kg * a
a = 0.6

For object 2:

15 N = 50 * a
a = 0.3

Therefore, the acceleration of Object B is half that of Object A.

Answer:

776

Explanation:

You are standing 100 Meters away from your car when an alligator appears 20meters away from you on the opposite side and you start to run with a speed of 5m/s while the alligator's speed was 8m/s towards you. Will you reach your car before the alligator reaches you? Why?

Answers

Pretty sure you'd be a dead man. Let's break this up shall we?

So if you're running @ 5 m/s at a distance of 100m, then it'll take you 20 seconds to get to the car. This is because distance/velocity=time. ••••• Now the Alligator is another story. He has to run 20m+100m and he runs @ 8 m/s. Using the same equation again, d/v= time, you will find that it takes the alligator 15 seconds to get to your car. So if it takes 20 secs for you to get to safety, and 15 secs for the alligator to maul you, if say you would die.

What runs along the top of the troposphere

Answers

Jet stream runs along the top of the troposphere as a high-speed, narrow air current flowing from west to east.

The "jet stream" is the narrow, high-speed tropospheric air current that flows west to east. The jet stream is a major atmospheric phenomena that occurs between 9 and 16 kilometres above the Earth's surface. Cold polar air and warmer equatorial air cause it. The jet stream's meandering route can affect weather patterns, storm movement, and large-scale weather. The jet stream's behaviour affects travel schedules and fuel efficiency, thus meteorologists use it to anticipate weather.

"Jet stream." The jet stream is a narrow, high-speed air movement that sweeps along the troposphere's top 9–16 kilometres (30,000–50,000 feet) above Earth. It shapes weather patterns and influences weather systems worldwide as it moves west to east. The jet stream affects temperature, precipitation, and atmospheric conditions, thus meteorologists study it to predict weather changes.

To know more about troposphere

brainly.com/question/29609063

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Complete quesion:- "What runs along the top of the troposphere and is a high-speed, narrow air current flowing from west to east?"

it will be the stratosphere with the ozone layer

To begin a dive, a diver jumps into the air and then lands on the diving board, causing it to bend. What type of energy conversions occur as the board springs back and propels the diver up into the air?

Answers

As the board springs back, the energy from the person jumping up onto the board is converted into potential energy.
As the diver goes up into the air, the potential energy is converted into kinetic energy and gravitational potential energy.

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An object has a density of 0.755 g/mL. Its volume is 640 mL. What is its mass?