If the wavelength of a photon in vacuum is the same as the de broglie wavelength of an electron, then the

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Answer 1

Answer:

Answer:

Explanation:

The photons travel faster faster through space because photons always travel through space faster than electrons, in fact when an electron gets hitted by a photon this boost its speed

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The right answer for the question that is being asked and shown above is that: "(d)-2.78x10^-10 C." A small object A, electrically charged, creates an electric field. At a point P located 0.250m directly north of A, the field has a value of 40.0N/C directed to the south.

How do I compute the resistance in ohms of a lead block 15 cm long and 0.10 cm2 in cross-sectional area. (ρ = 2.2 x 10-5 ohm-cm)

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Resistance is also dependent on the length of a wire where it is expressed as the product of the resistive force and the length of the wire over the cross-sectional area of the wire. Calculation are as follows:

R= pL / A
R = 2.2 x 10^-5 x 15 / 0.10
R = 3.3 x 10^-3 ohms

The charges on two metallic balls are 5.0 and 7.0 coulombs respectively. They are kept 1.2 meters apart. What is the force of interaction between the two?

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Answer: the correct answer is 8*10^-11

The control group in an experimental study will __________.

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Answer:

receive no treatment during the experiment

Explanation:

Give you something to compare your results with. It's always nice to be able to see what changes have been made to the original, even if it's not technically the original (I know that was worded weird, I just don't know how else to explain it.) Hope this helped!

The current in the circuit shown is 2.0 A.What is the value of R3?

A) 10 Ω
B) 15 Ω
C) 20 Ω
D) 55 Ω

Answers

Answer:

Resistor R₃ = 10 Ω

Explanation:

It is given that,

Current flowing in the circuit, I = 2 A

Resistors R₁ = 2 Ω

Resistor R₂ = 3 Ω

Voltage, V = 30 V

We have to find the value of R₃. All three resistors are connected in series. In series combination, the current flowing through the all resistors is same. Firstly, calculating equivalent resistance of three resistors as :

$R_(eq)=R_1+R_2+R_3$

$R_(eq)=2\ \Omega+3\ \Omega+R_3$

$R_(eq)=5\ \Omega+R_3$ ..............(1)

Using Ohm's law : $V=IR_(eq)$

$30\ V=2\ A* (5 + R_(3))$

On solving above equation : $R_3=10\ \Omega$

Hence, the correct option is (A) " 10 Ω "

The value of R3 is A) 10 Ω

I'm really confused about waves and I can't identify the period, frequency, velocity etc in a word problem. Please give examples with units!!! I'm failing science rn!!

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Period is defined as the time required to complete one cycle which is also related to frequency. Period is presented by an equation P = 1/f where p is the period, and f is the frequency. The unit is in second. Frequency is defined as the number of circular revolutions in a given time interval and it is in Hertz (Hz) = 1s^-1. Velocity s defined as the arc traveled at a given time with the equation v=l/t where v is the velocity, l is the length and t is time. The unit is in m/s.

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