What is the difference between circumstances and circumference??<br><br>pls ans asap

The bending of light as it passes into a transparent material of different optical intensity is known as

defon

The bending of light as it passes into a transparent material of different optical intensity is known as refraction. The correct option among all the options given in the question is option "C".It can never be reflection as reflection is the bouncing of the light from a surface and so option “A” can easily be negated. The last option or option “D”<span> conversion and it mean converting something to another and that means a total change of form. So the last option should also be negated. The second option can also be negated.</span>

5 0

3 years ago

The system consists of a 20-lb disk A, 4-lb slender rod BC, and a 1-lb smooth collar C. If the disk rolls without slipping, dete

dlinn [17]

Answer:

The velocity of the collar will be 3.076 ft/s

Explanation:

Given data

weight of the disk, Wa = 20lb

weight of rod BC, Wbc = 4lb

weight of collar, Wc = 1lb

Considering the equation of equilibrium

Vb = 1.5Wbc

Wa = 1.875 Wbc

to calculate the velocity of the collar using energy conservation equation

T1 + V1 = T2 + V2

$0+4(1.5 \sin 45)+2(3 \sin 45)=\frac{1}{2}\left(\frac{1}{2}\left(\frac{20}{32.2}\right)(0.8)\right)$

=> $(1.875 W b c)+\frac{1}{2}\left(\frac{20}{32.2}\right)(1.5 W b c)+\frac{1}{2}\left(\frac{20}{32.2}\right)$

=> $(1.5 W b c) \frac{1}{2}\left\{\frac{1}{12}\left(\frac{4}{32.2}\right)(3)\right\}+\frac{1}{2}\left(\frac{1}{32.2}\right)$

=> $(2.598 W b c)+4(1.5 \sin 0)+2(3 \sin 0)$

Wbc = 1.18rad/sec

i.e.

$V _c=2.598 \times 1.18$

= 3.076 ft/ s

5 0

3 years ago

2. A student becomes so excited by the whole idea of black holes that he decides to jump into one. It has a mass 10 times the ma

LiRa [457]

Answer:

*Disclaimer you can't actually do that, or at least not yet because the nearest black hole is at least 1,000 light years away. But if we could...

His journy would be pretty fast and horrific. For him, he would slowly be streched apart or spegetified into a string of atoms as he nears the event horizoin. But for an outside observer he would apear to go slower and slower and would never actualy reach the event horizion. This is becuase of einstines general relativity, massive objects slow time down. He would also apear to become red as the lights wavelength is streched out due to the entense gravity of the black hole.

8 0

3 years ago

During an oil spill, oil coats the surface of the water, endangering sea life. Why doesn’t oil dissolve in ocean water?

Natasha2012 [34]

The properties of oil and water do not mix

5 0

3 years ago

A compact car has a mass of 1310 kg . Assume that the car has one spring on each wheel, that the springs are identical, and that

Nady [450]

Answer:

a) k= 3232.30 N / m, b) f = 4,410 Hz

Explanation:

In this exercise, the car + spring system is oscillating in the form of a simple harmonic motion, as the four springs are in parallel, the force is the sum of the 4 Hocke forces.

The expression for the angular velocity is

w = √k/m

the angular velocity is related to the period

w = 2π / T

we substitute

T = 2 $\pi$ √m/ k

a) empty car

k = 4π² m / T²

k = 4 π² 1310/2 2

k = 12929.18 N / m

This is the equivalent constant of the short springs

F1 + F2 + F3 + F4 = k_eq x

k x + kx + kx + kx = k_eq x

k_eq = 4 k

k = k_eq / 4

k = 12 929.18 / 4

k= 3232.30 N / m

b) the frequency of oscillation when carrying four passengers.

In this case the plus is the mass of the vehicle plus the masses of the passengers

m_total = 1360 + 4 70

m_total = 1640 kg

angular velocity and frequency are related

w = 2pi f

we substitute

2 pi f = Ra K / m

in this case the spring constant changes us

k_eq = 12929.18 N / m

f = 1 / 2π √ 12929.18 / 1640

f = π / 2 2.80778

f = 4,410 Hz

3 0

3 years ago

What is the difference between circumstances and circumference??pls ans asap​

What is the difference between circumstances and circumference??pls ans asap