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Komok [63]
3 years ago
13

The law of reflection states that light is reflected off a surface at the same angle that light hits the surface. The arrow on t

he right of the diagram that shows the direction of light is the a
Question 4 options:

a.incident ray


b.refracted ray


c.coincident ray


d.reflected ray
Physics
2 answers:
kap26 [50]3 years ago
7 0

A. Incident ray is the answer

Yuliya22 [10]3 years ago
6 0

Answer:

a

Explanation:

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Alex_Xolod [135]

Answer:

The proton has much greater mass

Explanation:

  • Protons and electrons are part of an atom
  • Proton exists inside nucleus whereas electron keep moving around the nucleus
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8 0
2 years ago
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15. If an 800.-kg sports car slows to 13.0 m/s to check out an accident scene and the
goldfiish [28.3K]

The final combined velocity after the collision is 20.2 m/s

Explanation:

We can solve this problem by using the law of conservation of momentum: in fact, in absence of external forces, the total momentum of the two car and of the truck must be conserved before and after the collision.

This means that we can write the following equation:

p_i = p_f\\m_1 u_1 + m_2 u_2 = (m_1+m_2)v  

where:  

m_1 = 800 kg is the mass of the sport car

u_1 = 13.0 m/s is the initial velocity of the car (taking its direction as positive  direction)

m_2 = 1200 kg is the mass of the truck

u_2 = 25.0 m/s is the initial velocity of the truck

v is the final combined velocity of the car and the truck, after the collision

Re-arranging the equation and substituting the values, we find the velocity after the collision:

v=\frac{m_1 u_1 + m_2 u_2}{m_1+m_2}=\frac{(800)(13)+(1200)(25)}{800+1200}=20.2 m/s

And the positive sign indicates their final direction is the same as the initial direction of the two vehicles.

Learn more about momentum here:

brainly.com/question/7973509  

brainly.com/question/6573742  

brainly.com/question/2370982  

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5 0
3 years ago
The angle between incident ray and reflected ray is 80 degrees. What is the value of angle of incidence?
saul85 [17]

Answer:

The angle of incident ray is 40°.

Explanation:

Given that the angle of incident and reflected ray are the same. In this question, we had given that both angles added up will gives you 80° so you have to divide it by 2 :

incident + reflected = 80°

Let incident = reflected = θ

θ + θ = 80°

2θ = 80°

θ = 80° ÷ 2

= 40°

8 0
3 years ago
Different _ of an element have different numbers of neutrons?
natali 33 [55]

Answer:

Isotopes

Explanation:

Your welcome

4 0
3 years ago
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4. Which scientist proposed the theory that the Moon formed from fission? (5 points)
NeTakaya
The answer would be B, George Darwin :)
7 0
3 years ago
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