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bagirrra123 [75]
2 years ago
7

A blue-light photon has a wavelength of

Physics
1 answer:
Tresset [83]2 years ago
8 0
Energy = hc/λ, where h is planck's constant, c is the speed of light and λ is the wavelength.

Energy = (6.626 x 10^-34*3.00 x 10^8)/(<span>4.80 × 10^−7)= 4.14*10^-19 J, which is 3.

Normally, when solving these equations, don't forget to check the units are correct (eg. wavelength is in meters) and dont forget to include the units in the calculation.</span>





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What can iron filings sprinkled on a piece of paper demonstrate?
jolli1 [7]
<span>c the pattern of the magnetic fields lines</span>
6 0
2 years ago
This is the speed at which molecules or atoms move dependent on temperature and state of matter.
user100 [1]
The correct answer should be kinetic molecular velocity. Which is a complex term for the speed of molecules. The faster the molecules move the more liquid the chemical will be, with the fastest being gaseous molecules. The slowest ones are things that are solid. This is easily observed on water that is slowest when ice and fastest when water vapor.
6 0
3 years ago
Read 2 more answers
A 12-V DC automobile head lamp is to be used on a fishing boat with a 24-V power system. The head lamp is rated at 50 W. A resis
spin [16.1K]

Answer:

The  resistance is  R  =  2.88 \ \Omega

Explanation:

From the question we are told that

    The  voltage  rating of the headlamp is  V_1  =  12 \ V

     The  voltage of the power system is  p =  24 \  V

     The  power rating of the headlamp  is  P  =  50 W

Generally the power which the resistor dissipates is mathematically represented as

      P  =  V_L *  I

=>       50 =  12 *  I

=>   I  =  4.1667 \  A

Generally the resistance is

      R  =  \frac{V_1 }{I}

      R  =  \frac{12 }{4.1667}

      R  =  2.88 \ \Omega

8 0
3 years ago
9. What is the force caused by gravity?
kramer

Answer:

A DOWNWARD FORCE

Explanation:

cos gravity acts <u>down</u> on the  earths surface.

7 0
2 years ago
Read 2 more answers
Plzzz help pop asap
Zarrin [17]

Answer:

F = 200 N

Explanation:

Given that,

Mass of the object, m = 20 kg

The acceleration of the object, a = 10 m/s²

We need to find the force exerted by the object. The force acting on the object is given by :

F = ma

So,

F=20\ kg\times 10\ m/s^2\\\\F=200\ N

So, 200 N of force was exerted by the object.

6 0
2 years ago
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