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ElenaW [278]
2 years ago
5

Which red line shows the same action spectrum corrected for the unequal number of photons emitted across the visible spectrum?.

Physics
1 answer:
stealth61 [152]2 years ago
3 0

The visible spectrum is composed of red, orange,yellow,  green, blue, violet, indigo.

<h3>What is visible spectrum?</h3>

The visible spectrum refers to the portion of the electromagnetic spectrum that can be seen with the eyes. All other portions of the electromagnetic spectrum are invisible.

The question is incomplete as the details are missing. The visible spectrum is composed of red, orange,yellow,  green, blue, violet, indigo.

Learn more about the visble spectrum: brainly.com/question/1596783

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A 4 kg toy car moves horizontally on a rough road with coefficient of kinetic friction 0.2. It accelerates from rest to 20 m/s i
attashe74 [19]

The total work done on the car is 784Joule.

<h3>What's the acceleration of the car?</h3>
  • As per Newton's equation of motion, V= U+at
  • U= initial velocity= 0 m/s

V= vinal velocity= 20m/s

t= time = 10s

a= acceleration

  • So, 20= 0+ 10a

=> a= 20/10= 2m/s²

<h3>What's the distance covered by the car in 10 seconds?</h3>
  • As per Newton's equation of motion,

V²-U² = 2aS

  • S= distance covered by the car
  • So, 20²-0=2×2×S=4S

=> 400= 4S

=> S= 400/4= 100m

<h3>What's the work done on the car due to frictional force?</h3>

Work done by frictional force= frictional force × distance

= (0.2×4×9.8)×100

= 784Joule

Thus, we can conclude that the work done on the car is 784Joule.

Learn more about the work done here:

brainly.com/question/25573309

#SPJ1

4 0
1 year ago
What horizontal force is required to drag a 15.8 kg block a long a horizontal surface with a coefficient of friction of 0.3, at
nirvana33 [79]

Answer:

Explanation:your mom!

8 0
3 years ago
What is the weight of a basketball with a mass of 0.5 kg
IgorLugansk [536]

W = 4.9N. The weight of a basketball with a mass of 0.5Kg is 4.9N.

The weight of an object is the force of gravity on the object and can be defined as the product of the mass by the acceleration of gravity, w = mg.

W = (0.5Kg)(9.8 m/s²) = 4.9N

6 0
3 years ago
A moving small car has a head-on collision with a large stationary truck 7.3 times the mass of the car. Which statement is true
san4es73 [151]

Answer:

The car would speed off 2x's as fast as the speed of the heavy truck provided the the collision is an elastic collision where there's no or little friction occurring within the scenario.

Explanation:

Newton's law proves that an object with a greater mass can move objects of lesser mass at greater distances and speed.

7 0
3 years ago
Jorge wishes to observe the progress of his vacuum pump in evacuating a tall bell jar for the purpose of demonstrating that soun
natka813 [3]

Answer:

1.147 %

Explanation:

\rho = Density of mercury = 1.36\times 10^4\ kg/m^3

g = Acceleration due to gravity = 9.81 m/s²

h = Height of mercury = 8.69 m

Standard atmospheric pressure = 1.01\times 10^5\ Pa

6.55 mmHg converting to Pa

\rho gh\\ =1.36\times 10^4\times 9.81\times 8.69\times 10^{-3}\\ =1159.38504\ Pa

Dividing air pressure by the above value

\frac{1159.38504}{1.01\times 10^5}\times 100=1.147\ \%

The fraction of atmospheric pressure is 1.147 %

8 0
2 years ago
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