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love history [14]
3 years ago
15

Select the correct term to complete each sentence. If you the wavelength, the electromagnetic radiation energy will double. The

energy of the electromagnetic radiation will if you halve the wavenumber. When the frequency of the light is doubled, its energy will
Physics
1 answer:
Andrews [41]3 years ago
5 0

Answer:

A) If you halve the wavelength, the electromagnetic radiation energy will double.

B) The energy of the electromagnetic radiation will halve if you halve the wavenumber.

C) When the frequency of the light is doubled, its energy will double.

Explanation:

The function for the light frequency is given as

The energy supplied to each electron is doubled by halving the wavelength, nearly doubling its kinetic energy by two after it is free from the metal. It is important to remember that for a given period of time, the number of electrons ejected will remain constant.

Cheers

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Un cubo de hielo de 80 g de masa y a una temperatura de –10 oC se deja caer dentro de un vaso de agua a 0 oC. Si no hay intercam
il63 [147K]

Answer:

the answer is 187

Explanation:

7 0
3 years ago
A 5.6 V battery is connected in series with a 41 mH inductor, a 100 Ω resistor, and an open switch. At what time after the switc
Vinil7 [7]

The current in a direct current resistor inductor circuit is given by:

i(t) = (-ℰ/R)e^{-Rt/L} + ℰ/R

Where i(t) is the current, t is time, ℰ is the battery's terminal voltage, R is the resistor's resistance, and L is the inductor's inductance.

Given values:

ℰ = 5.6V

R = 100Ω

L = 4.1×10⁻²H

Plug in the values to get i(t):

i(t) = -0.056e^{-2440t} + 0.056

We want to calculate when the current is 0.012A, i.e. find a time t when i(t) = 0.012A. So let us set i(t) equal to 0.012 and solve for t:

-0.056e^{-2440t} + 0.056 = 0.012

0.056e^{-2440t} = 0.044

e^{-2440t} = 0.786

-2440t = ㏑(0.786)

t = -㏑(0.786)/2440

t = 9.87×10⁻⁵s

3 0
4 years ago
A bicyclist travels at the speed of 25 kilometers per hour for 5 hours. How far does the bicyclist go?
mixas84 [53]

Answer:

125 kilometers

Explanation:

Speed= 25km/h

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6 0
3 years ago
Read 2 more answers
A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2 thro
yarga [219]

Answer:

V_2=6.17\ m/s

Q=0.49\ m^3/s

Explanation:

Given that

A_1=0.03m^2

A_2=0.08m^2

We know that from continuity equation

Q=A_1V_1=A_2V_2

So

A_1V_1=A_2V_2

0.3V_1=0.08V_2

V_1=2.66V_2

Now from energy equation

P_1+\dfrac{1}{2}\rho V_1^2=P_2+\dfrac{1}{2}\rho V_2^2

P_2-P_1=\dfrac{1}{2}\rho V_1^2-\dfrac{1}{2}\rho V_2^2

140=\dfrac{1}{2}\times 1.2\times 7.11\times V_2^2-\dfrac{1}{2}\times 1.2\times V_2^2

V_2=6.17\ m/s

Q=A_2V_2

Q=6.17 x 0.08

Q=0.49\ m^3/s

7 0
3 years ago
4. Joe and his brother Bo have a combined mass of 200.0 kg and are zooming along in
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Answer:

Joe & Bo's car: 200.0 kg + 100.0 kg = 300.0 kg; Melinda's car: 25.0 kg + 100.0 kg = 125.0 kg

so the answer is 125.0kg

6 0
3 years ago
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