2 years ago

What is the speed of a wave that has a frequency of 175 to the nearest whole number

Physics

1 answer:

AfilCa [17]2 years ago

5 0

Answer:the answer is 34 the whole number you round it and find the answer

Explanation:

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Where is the centre of mass of a system of two particles is situated?

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Answer:

In a two particle system, the center of mass lies on the center of the line joining the two particles.

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2 years ago

We intend to observe two distant equal brightness stars whose angular separation is 50.0 × 10-7 rad. Assuming a mean wavelength

san4es73 [151]

Answer:

13.4cm

Explanation:

According to Rayleigh’s criterion the angular resolution to distinguish two objects is given by:

$\theta=1.22\frac{\lambda}{b}$

θ = 50.0*10^-7 rad

λ: wavelength of the light = 550nm

b = diameter of the objective

By doing b the subject of the formula and replacing the values of the angle and wavelength you obtain:

$b=1.22\frac{\lambda}{\theta}=1.22\frac{550*10^{-9}m}{50.0*10^{-7}rad}=0.134m=13.4cm$

hence, the smallest diameter objective lens is 13.4cm

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2 years ago

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A coin purse contains d dimes and q quarter's. There are 20 coins in the purse and the total value of the coins is $4.25. Which

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Answer:

Explanation:

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2 years ago

12345 [234]

Answer:

charcoal is the correct answer

hope it helps , pls mark me as brainliest

6 0

3 years ago

How long does it take a car traveling at 50 mph to travel 75 miles? Use one of the following to find the answer.

yanalaym [24]

Answer:

90 Minutes

Explanation:

t = d / v

t = 75 / 50

t = 1.5 hour

t = 90 minutes.

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2 years ago