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2 years ago

All of the following are examples of hypnotism methods except...

Physics

2 answers:

UNO [17]2 years ago

7 0

Answer:

hypnosis certification

Explanation:

MAVERICK [17]2 years ago

5 0

C) Hypnosis Certification this is only showing your certification and not a method of hypnosis

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In the photoelectric effect, a photon with an energy of 5.3 × 10–19 J strikes an electron in a metal. Of this energy, 3.6 × 10–1

valentina_108 [34]

Answer:

The velocity of the photo electron is $6.11\times 10^5\ m/s$ .

Explanation:

Given that,

Supplied energy, $E_s=5.3\times 10^{-19}\ J$

Minimum energy of the electron to escape from the metal, $E_e=3.6\times 10^{-19}\ J$

We need to find the velocity of the photo electron. The energy supplied by the photon is equal to the sum of minimum escape energy and the kinetic energy of the escaping electron. So,

$5.3\times 10^{-19}\ J=3.6\times 10^{-19}\ J+K\\\\K=5.3\times 10^{-19}-3.6\times 10^{-19}\\\\K=1.7\times 10^{-19}\ J$

The formula of kinetic energy is given by :

$K=\dfrac{1}{2}mv^2\\\\v=\sqrt{\dfrac{2K}{m}} \\\\v=\sqrt{\dfrac{2\times 1.7\times 10^{-19}}{9.1\times 10^{-31}}} \\\\v=6.11\times 10^5\ m/s$

So, the velocity of the photo electron is $6.11\times 10^5\ m/s$ .

4 0

3 years ago

1. What part (or parts) of this system store potential energy?

choli [55]

Answer:

➢when you crank you make kinetic energy and then the kinetic energy makes potential energy.

Explanation:

hope it will help you have a great day bye and Mark brainlist if the answer is correct

 $kai6417$ 

#carry on learning

5 0

2 years ago

A man has been guarding a house for one hour . Why is it not considered work in science

leva [86]

Answer: because there is no displacement or movement in the watchman's work. according to science when displacement or movement take place it is said to be work. hope this helps you.

8 0

2 years ago

Give two explains food that are good sources of protein

Ad libitum [116K]

Answer:

Chicken and peanut butter lol

Explanation:

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2 years ago

Elements from which two groups in the periodic table would most likely combine

Katarina [22]

The answer is actually 1 & 17, maybe you meant to put 1&17 as option b

8 0

2 years ago