3 years ago

The frequency will be 6 × 1014 H z of a typical green photon of 500nm emitted by the Sun. a. TRUE

Physics

1 answer:

Lelechka [254]3 years ago

8 0

False because I just did it

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a toy car is wound up and released on the floor. it accelerates at a rate of 0.4 m/s/s . the mass of the care is 3kg. what is th

EastWind [94]

Answer:

1.2N

Explanation:

f=m×a

m=3kg

a=.4m/s/s

3×.4=1.2

kg×m/s/s = N

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3 years ago

Tom and Mary are riding a merry-go-round. Tom is on a horse about half way between the center and the outer rim, and Mary is on

iren2701 [21]

Answer:

Explanation:

Given

Tom is on half way between the center and the outer rim

Mary is on the extreme outer rim

Suppose $\omega$ is the angular velocity of ride with radius of outer rim be R

$\alpha =$ angular acceleration of Ride

At any instant both Tom and Mary experience the same angular speed

(b)Linear velocity at any instant

$v_{Tom}=\omega \times R$

$v_{Mary}=\omeag \times \frac{R}{2}$

Thus Tom has higher linear speed

$a_r=\omega ^2\times r$

$a_{Tom}=\omega ^2\times R$

$a_{Mary}=\omega ^2\times \frac{R}{2}$

Tom has higher radial Acceleration as it is directly Proportional of radius

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3 years ago

Liquid nitrogen boils at 77.2 k. what is this temperature in degrees celsius

Ratling [72]

<span>77.2 k is -195.95 C

To convert from Kelvin to Celsius, you simply subtract 273.15 from the temperature. So the expression becomes c = 77.2 - 273.15 = -195.95</span>

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3 years ago

How much of the electromagnetic spectrum is visible light?

Margarita [4]

I believe the answer is D, only a small part of it

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3 years ago

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The rate at which work is done is called ____.

alekssr [168]

D. Power. The unit of power is watt.

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