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horsena [70]
3 years ago
15

An electromagnetic wave has a frequency of 6.0 x 10^18 Hz. What is the wavelength of the wave?

Physics
1 answer:
Vikki [24]3 years ago
8 0

Answer:

500 nm

Explanation:

\lambda = c/\nu = \frac{3*10^8}{6*10^{18}} = 5*10^{-11} m

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A 20 N unbalanced force causes an object to accelerate at 1.5 m/s2. What is the mass of the object?
Ket [755]

<u>Answer:</u>

Force = 20N

acceleration (a) = 1.5 m/s²

Mass of object (m) = ?

<u>From Newtons II law</u>

                   <em>    F = m. a N</em>

                        m =  F/a

                        m = 20/1.5

                      <em>  m = 13.34 Kg</em>

<em>Mass of an object is 13.34 Kg</em>

8 0
3 years ago
Lisa is eating dinner.Which sensory organs is she most likely using to process what she is eating?
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Answer:

A

Explanation:

3 0
3 years ago
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A ball is released from the top of a hill. How fast is the ball going when it reaches the base of the hill? Approximate g as 10
irina [24]
First I’ll show you this standard derivation using conservation of energy:
Pi=Kf,
mgh = 1/2 m v^2,
V = sqrt(2gh)
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3 years ago
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Which is a consequence of the third law of thermodynamics Energy is not always conserved. Engines cannot discharge waste heat. H
miss Akunina [59]
Heat engines are less than 100% efficient because absolute zero cannot be reached
8 0
3 years ago
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At a stoplight, a truck traveling at 15 m/s passes a car as it starts from rest. The truck travels at constant velocity and the
Art [367]
The time that the car take to catch up to truck would be :

1/2 ar^2  = vt

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1.5  t^2  =  15t

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Hope this helps
4 0
3 years ago
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