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3 years ago

the amplitude of the wave is which of the following A. Resonance B. Reflection C. Energy D. Magnitude

Physics

1 answer:

OLga [1]3 years ago

8 0

D.Magnitude is the answer

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Explanation:

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1 year ago

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In which case does viscosity play a dominant role? Case A: a typical bacterium (size ~ 1 mm1 mm and velocity ~ 20 mm/s20 mm/s) i

My name is Ann [436]

Answer:

Case A

Explanation:

given,

size of bacteria = 1 mm x 1 mm

velocity = 20 mm/s

size of the swimmer = 1.5 m x 1.5 m

velocity of swimmer = 3 m/s

Viscous force

$F = \eta A \dfrac{dv}{dx}$

for the bacteria

$F = \eta \times 10^{-6}\times 20\times 10^{-3}$

$F =2\times 10^{-8} \eta\ N$

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$F = \eta \times 1.5^2\times 3$

$F =6.75 \eta\ N$

from the above force calculation

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Viscous force is dominant in case of bacteria.

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3 years ago

You leave on a 450 miles trip in order to attend a meeting that will start 10.8 hours after you begin your trip. Along the way y

Lorico [155]

Answer:2.6 h

Explanation:

Given

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safe Fastest speed is 55 mi/h

so if he drives all the to the meeting with max speed then it takes $=\frac{450}{55}=8.181 h$

and total allowable time is 10.8

Therefore longest time he can spend over dinner is $10.8-8.181 \approx 2.6 hours$

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2 years ago

two identical-looking, large, round balls are placed in front of you. one is filled with feathers and the other is filled with s

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If you apply a little bit of force, one will move easier than the other since it is lighter.

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2 years ago

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Drupady [299]

It is defined by their wavelength. Different colors have different wavelengths. For example, radio waves have a really long wavelength, whereas gamma-rays have a very short wavelength.

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2 years ago

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