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3 years ago

Write a short note of the followinga) Reflectionb) Refractionc) Diffraction

Physics

1 answer:

Scorpion4ik [409]3 years ago

6 0

Answer:

a) Light that passes through the floor to reveal yourself (not shadow).

b) 2 rays of light that bounce between 2 transparent media.

c) I don't know what is Diffraction?

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What is center of mass?

yuradex [85]

“a point representing the mean position of the matter in a body or system.”

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3 years ago

Two Mississippi companies, Howard Industries and Kuhlman Electric Company, are responsible for most of the transformers and powe

yanalaym [24]

I think b but im not sure just helping

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3 years ago

Read 2 more answers

A spring with a constant of 16 N/m has 98 J of energy stored in it when it is extended. How far is the spring extended?

Alchen [17]

The spring has been extended for 3.5 m

<u>Explanation:</u>

We have the formula,

PE =1/2 K X²

Rewrite the equation as

PE=1/2 K d²

multiply both the sides by 2/K to simplify the equation

2/k . PE= 1/2 K d² . 2/K

√d²=√2PE/K

Cancelling the root value and now we have,

d=√2PE/k

d=√2×98 J / 16N/m

d=√12.25

d=3.5 m

The spring has been extended for 3.5 m

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6 0

4 years ago

A ball is thrown directly upward from a height of 3 ft with an initial velocity of 28 ft/sec. the function s(t)equalsminus16ts

borishaifa [10]

Answer:

$t = 0.875 s$

$s_{max} = 15.25 ft$

Explanation:

Position of the ball as a function of time is given as

$s(t) = s_o + v_y t + \frac{1}{2}at^2$

$s(t) = 3 + 28 t - 16 t^2$

now we know that when ball will attain maximum height then the differentiation of the position with respect to time will become zero

so we have

$\frac{ds}{dt} = 0$

$0 = 0 + 28 - 32 t$

$t = 0.875 s$

now the maximum height is given as

$s_{max} = 3 + 28(0.875) - 16(0.875)^2$

$s_{max} = 15.25 ft$

4 0

3 years ago

What is the mass of a car that weighs 12kN?<br> Will give brainliest!!!!

masha68 [24]

Answer:

The answer is 1200 Kg

Explanation:

<h3><u>Given</u>;</h3>

Weight of car 12000 N

Mass of car = ?

<h3><u>Formula</u>;</h3>

W = m × g
where, W = weight
m = mass,
g = Acceleration due to gravity = 10 m/s²

Now,

W = mg

12000 = m ÷ 10

m = 12000 ÷ 10

m = 1200 kg

Thus, The mass of car is 1200 kg or 1.2k Kg.

<u>-TheUnknownScientist 72</u>

7 0

2 years ago

Write a short note of the followinga) Reflectionb) Refractionc) Diffraction​

Write a short note of the followinga) Reflectionb) Refractionc) Diffraction