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Alexxx [7]
4 years ago
13

When a beam of light passes at an oblique angle into a material of lower optical density, the angle of incidence is

Physics
2 answers:
suter [353]4 years ago
7 0

Penn Foster Students: less than the angle of refraction

Anastasy [175]4 years ago
5 0
<span>The correct answer is letter B. less than the angle of refraction. </span>When a beam of light passes at an oblique angle into a material of lower optical density, the angle of incidence is <span>less than the angle of refraction. The reason for that because the beam of light passes through an oblique angle.</span>
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A 100-kg tackler moving at a speed of 2.6 m/s meets head-on (and holds on to) an 92-kg halfback moving at a speed of 5.0 m/s. Pa
DIA [1.3K]

Given that,

Mass of trackler, m₁ = 100 kg

Speed of trackler, u₁ = 2.6 m/s

Mass of halfback, m₂ = 92 kg

Speed of halfback, u₂ = -5 m/s (direction is opposite)

To find,

Mutual speed immediately after the collision.

Solution,

The momentum of the system remains conserved in this case. Let v is the mutual speed after the collision. Using conservation of momentum as :

m_1u_1+m_2u_2=(m_1+m_2)V\\\\V=\dfrac{m_1u_1+m_2u_2}{(m_1+m_2)}\\\\V=\dfrac{100\times 2.6+92\times (-5)}{(100+92)}\\\\V=-1.04\ m/s

So, the mutual speed immediately after the collision is 1.04 m/s but in opposite direction.

3 0
4 years ago
A truck initially traveling at a speed of 22 m/s increases at a constant rate of 2.4 m/s^2 for 3.2s. What is the total distance
FinnZ [79.3K]

Answer:

82.7 m

Explanation:

u= 22m/s

a= 2.4 m/s^2.

t= 3.2 secs

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S= ut + 1/2at^2

= 22 × 3.2 + 1/2 × 2.4 × 3.2^2

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= 70.4 + 12.29

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Hence the distance travelled by the truck is 82.7 m

6 0
3 years ago
Name three bright Saturn ring features, and explain why they are so bright.
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The F Ring, the Cassini Division, and the C Ring are bright ring features. They are bright due to the low concentration of materials within them, which allows sunlight to shine through.


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3 years ago
Can anyone pls help me out in dis i am struggling in dis!
Step2247 [10]
The answer is C because all the other choices would cause disaster like pollute the water if you just throw it in the sink and it would smell terrible if you put it in the garbage etc...
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3 years ago
A 63 kg kg person starts traveling from rest down a waterslide 6.0 mm above the ground. At the bottom of the waterslide, it then
gladu [14]

Answer:

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5 0
3 years ago
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