How much current will a 240 V heater with 20 ohms of resistance draw?

Final answer:

The speed you read on a speedometer is your instantaneous speed, which is the speed your vehicle is moving at a specific moment. This is usually measured in miles per hour (mph) or kilometers per hour (km/h), and it's calculated based on the rotation of your vehicle's wheels or drive shaft.

Explanation:

The speed you read on a speedometer is your instantaneous speed. This is the speed at which your vehicle is moving at a specific moment in time. On a standard speedometer, you'll see this represented as miles per hour (mph) or kilometers per hour (km/h), depending on your location and the standard measure of distance in your country.

The speedometer works by taking into account the rotation of the wheels or drive shaft and converting that rotational speed into a speed of linear motion.

For example, if you're driving and your speedometer says 60 mph, this means that at that particular moment, you are moving at a speed of 60 miles in one hour.

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Answer;

The sun creates energy through nuclear fusion. Kinetic energy creates heat and light.

Explanation;

• Solar energy from the sun is the primary source of energy on the surface of life that is important for sustaining life on earth.
• Nuclear fusion occurring in the sun involves a nuclear reaction in which hydrogen nuclei fuse together to form helium nuclei and release energy.
• Electromagnetic energy from the sun comes to Earth in the form of radiation.  This energy travels through space at a speed equivalent to that of other electromagnetic radiations that is the speed of light.
• The electromagnetic energy from nuclear fusion in the sun generates kinetic energy that in turn creates light and heat.

The nuclear energy is the source of energy production on the sun, then this travels to the Earth in the form of Electromagnetic radiation and as it heats up the other bodies in solar system, it gets converted into the heat energy.

Explanation:

The sun is considered to be the ultimate source of energy for the whole solar system. The energy produced in the sun reaches all the other planets in the solar system. The sunlight is a very big source of energy for the Earth also.

The energy produced on the sun is due to the nuclear reaction due to the immense pressure and temperature. This nuclear energy from the sun travels to the other bodies in the solar system by means of the electromagnetic radiations.

The electromagnetic radiations from the sun carry the heat energy to the bodies and as they reach the target, the target is heated up due to the conversion of the energy from the sun into the heat energy.

Thus, The nuclear energy is the source of energy production on the sun, then this travels to the Earth in the form of Electromagnetic radiation and as it heats up the other bodies in solar system, it gets converted into the heat energy.

Learn More:

1. Acceleration of the box under friction brainly.com/question/7031524

2. The kinetic energy of an object depends on the brainly.com/question/137098

3. The approximate time taken to walk for 2000 miles brainly.com/question/3785992

Answer Details:

Grade: High School

Subject: Physics

Chapter: Energy

Keywords:

sun, energy, nuclear, electromagnetic, heat, nuclear reaction, immense, pressure, temperature, source, solar system, planets.

Answer:

The work done to the block

See

Workdone is Force×Displacement .

Also work done is total mechanical energy of body

• As potential energy is 0

Mechanical energy=Kinetic energy

So option C is correct

Answer:

A convection current is the flow of heat within a fluid.

i hope it helped thanks