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Akimi4 [234]
2 years ago
3

The slope of a graph of photon energy versus photon frequency represents

Physics
1 answer:
Pie2 years ago
4 0

Answer:

Option A, Planck’s constant

Explanation:

Complete question

The slope of a graph of photon energy versus photon frequency represents

A) Planck’s constant

B) the mass of a photon

C) the speed of light

D) the speed of light squared

Solution

It is well known that when an electron jumps from one energy level (i.e higher energy level) to another energy level (i.e lower energy level), energy is released. This can be presented mathematically as  

f= \frac{E_2 - E_1}{h} \\

Where E_2 , E_1 is the energy of higher and lower energy levels respectively

and h is the Planck’s constant.

If the energy and frequency are plotted in a curve, then the slope of this curve will represents the Planck’s constant

Thus, option A is correct

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2 years ago
At room temperature, a typical person loses energy to the surroundings at the rate of 62 W. If this energy loss has to be made u
Alex_Xolod [135]

To solve this problem it is necessary to use the given proportions of power and energy, as well as the energy conversion factor in Jules to Calories.

The power is defined as the amount of energy lost per second and whose unit is Watt. Therefore the energy loss rate given in seconds was

P = \frac{E}{t} \rightarrow E= Energy, t = time

P = 62W = 62 \frac{J}{s}

The rate of energy loss per day would then be,

P = 62\frac{J}{s} (\frac{86400s}{1day})

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4 0
2 years ago
A radiometer can be used to determine the position of an approaching hot object by measuring the amount of irradiation it detect
forsale [732]

Answer:

The Position of the object L = 0.172 m

Explanation:

The detailed explanation of the question is given in the attach document.

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2 years ago
A solenoid with 3,000.0 turns is 70.0 cm long. If its self-inductance is 25.0 mH, what is its radius? (The value of μ0 is 4π x 1
nevsk [136]

Answer:

A. 2.2*10^-2m

Explanation:

Using

Area = length x L/ uo xN²

So A = 0.7m * 25 x 10^-3H /( 4π x10^-7*

3000²)

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= 15.5*10^-2m²

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2.2*10^2m

Explanation:

5 0
2 years ago
8) A soccer goal is 2.44 m high. A player kicks the ball at a distance 10.0 m from the goal at an angle of 25.0°. The ball hits
White raven [17]

Answer:

The initial speed of the soccer ball is 16.38 m/s

Explanation:

given;

vertical distance y = 2.44 m

horizontal distance x = 10.0 m

angle of projection θ = 25.0°

Initial velocity has two components, Vₓ and V_y

Vₓ  = V_i cosθ

V_y = V_i sinθ

The horizontal distance = x = Vₓt + ¹/₂ ˣ g ˣ t², but g =0

x = Vₓt =  V_i cosθ *t

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y = V_y*t -¹/₂ ˣ g ˣ t²

2.44 = (V_i sinθ)t - ¹/₂ ˣ 9.8 ˣ t²

2.44 = (V_i*t)sinθ - ¹/₂ ˣ 9.8 ˣ t²

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2.44 = (11.038)*0.4226 - 4.9t²

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V_i*0.674 = 11.038 m, solve for V_i

V_i = 11.038/0.674

V_i = 16.38 m/s

Therefore, the initial speed of the soccer ball is 16.38 m/s

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2 years ago
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