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Anettt [7]
3 years ago
6

It is hot outside, but your parents have been sitting outside of school with the car's engine running. The door handle on the ca

r feels hot, but when you get inside, the car is cool because of the A/C. Is the car an open or closed system?
Physics
1 answer:
shutvik [7]3 years ago
4 0

Answer:

closed

Explanation:

Idkidkidkidkidkidk

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Which of electromagnetic radiation has the shortest wavelength?
9966 [12]

Answer:

The electromagnetic radiation with the shortest wavelength are gamma rays.

Explanation:

Photons are the particles that constitute light and its kwnow that lights propagates as electromagnetic waves.

The electromagnetic spectrum is the distribution of radiation due to the different frequencies at which it radiates and its different intensities, that radiation is formed by electromagnetic waves, which are transverse waves formed by an electric field and a magnetic field perpendicular to it.

The distribution of the radiation in the electromagnetic spectrum can also be given in wavelengths, but it is more frequent to work with it at frequencies, the highest being that of gamma rays, followed by X-rays, ultraviolet rays and the visible region , and those of lower frequencies, which correspond to infrared, microwave and radio waves.        

The energy given for each wavelength can be found by means of the following equation.

E = h\nu  (1)

but c = \lambda \cdot \nu

\nu = \frac{c}{\lambda}

E = \frac{hc}{\lambda}   (2)

Where E is the energy, h is the planck's constant and \lambda is the wavelength.

                   

So, it can be see in equation 2 that when the wavelength increases the energy decreases (inversely proportional).

Hence, the electromagnetic radiation with the shortest wavelength are gamma rays.

   

4 0
3 years ago
Atmospheric pressure decreases with increment in height.<br> give reason​
jekas [21]

Answer:

pressure=height × density×acc due to gravity

so

pressire is directly proportional to height hence it decreses with decrease in height

here air column height is measured upside down so decreases witn increment

7 0
3 years ago
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Which item has the most potential energy (assume they are all at the same height and mass
LenKa [72]
It depend on how far it is from the earths base
4 0
3 years ago
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Draw the distance time graph for a body at rest​
Semenov [28]

I hope it is helpful for you...

8 0
3 years ago
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This is a machine that converts electrical energy into mechanical energy.
Yuri [45]
<h2>Answer:</h2>

Motor

<h2>Explanation:</h2>

A motor is a machine that converts electrical energy into mechanical energy. In motors, electric energy is converted into mechanic energy when a magnetic torque acts on a conductor that carries a current. There are different types of motors like DC and AC motors. The moving part of a motor is called the rotor while the stationary part is called stator

8 0
3 years ago
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