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xxMikexx [17]
3 years ago
9

If a water wave completes one cycle in 2 seconds, what is the period of the wave?

Physics
1 answer:
notka56 [123]3 years ago
8 0
2 seconds is the period (time it takes to complete one cycle)
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A electromagnetic wave of light has a wavelength of 500 nm. What is the energy (in Joules) of the photon representing the partic
marissa [1.9K]

Answer:

Energy, E=4.002\times 10^{-19}\ J

Explanation:

It is given that,

Wavelength of the photon, \lambda=500\ nm=5\times 10^{-7}\ m

We need to find the photon representing the particle interpretation of this light. it is given by :

E=\dfrac{hc}{\lambda}

E=\dfrac{6.67\times 10^{-34}\times 3\times 10^8}{5\times 10^{-7}}

E=4.002\times 10^{-19}\ J

So, the energy of the photon is 4.002\times 10^{-19}\ J. Hence, this is the required solution.

3 0
4 years ago
A balloon is charged until it has a voltage of v=9800V. A student reaches out and is shocked by a spark. The electric force does
alina1380 [7]

a)]An expression for the magnitude of charge transferred Q is Q = W/V.

b) The magnitude of the charge, in coulombs is  1.02 x 10⁻⁹ Coulomb.

c) Number of electrons in this are 63.75 x 10⁸ electrons.

<h3>What are electrons?</h3>

The electrons are the spinning objects around the nucleus of the atom of the element in an orbit.

A balloon is charged until it has a voltage of v=9800V. A student reaches out and is shocked by a spark. The electric force does W= 1x10⁻⁶ J of work transferring the charge.

a) Work done = Charge x potential

W = Q x V

Q = W/V

b)Substitute the values into the expression, we have

|Q| =  1x10⁻⁶/9800

|Q| =  1.02 x 10⁻⁹ Coulomb

c) No of electrons  = total charge /charge on electron

n = 1.02 x 10⁻⁹/1.6 x 10⁻¹⁹

n = 63.75 x 10⁸ electrons

Learn more about electrons.

brainly.com/question/1255220

#SPJ1

6 0
2 years ago
An electromagnetic wave is traveling the +y direction. The maximum magnitude of the electric field associated with the wave is E
cluponka [151]

Answer:

0.83x10^-9 T

Direction is towards +z axis.

Explanation:

E = cB

E = magnitude of electrical 0.25 Em

c = speed of light in a vacuum 3x10^8 m/s

Therefore,

B = E/c = 0.25 ÷ 3x10^8

B = 0.83x10^-9 T

Magnetic fueld of a EM wave acts perpendicularly to its electric field, therefore it's direction is towards the +Z axis

3 0
3 years ago
A certain electrical circuit contains a battery with three cells, wires, and a light bulb. Which of the following would cause th
Nady [450]
The answer is B increase the resistance of the circuit
5 0
3 years ago
The Hawaiian islands formed when molten material erupted from the ocean floor. As the lava flowed out, cooled, and hardened, mas
lara [203]

Answer:

Explanation:

The most common type of igneous rock making up the Hawaiian island chain is Mafic rock. Furthermore, the most common type of Mafic rock is basalt.

4 0
3 years ago
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