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irina [24]
3 years ago
5

A fisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surfac

e of the water. It takes a time of 2.90 s for the boat to travel from its highest point to its lowest, a total distance of 0.700 m . The fisherman sees that the wave crests are spaced a horizontal distance of 5.50 m apart.
How fast are the waves traveling?


What is the amplitude A of each wave?
Physics
1 answer:
frutty [35]3 years ago
8 0

Answer:

Velocity=1.1m/s

Amplitude=0.35m

Explanation:

Given:

time 't' = 2.9s

wavelength 'λ'= 5.5m

distance 'd'=0.7m

The time period 't' is the time b/w two successive waves. Therefore, the time it takes from the boat to travel  from its highest point to its lowest is a half period.

So, T = 2 x 2.9 => 5.8 s

As we know that frequency is the reciprocal of time period, we have

f= 1/T = 1/5.8 =>0.2 Hz

In order to find how fast are the waves traveling, the velocity is given by

Velocity = f λ

V= 0.2 x 5.5 =>1.1m/s

The distance between the boat's highest point to its lowest point is double the amplitude.

Therefore , we can write

Amplitude 'A'= d/2 =>0.7/2 =>0.35m

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The inflated balloon shrinks when it is placed in an ice bath with no change in atmospheric pressure.  

<u>Explanation:</u>

        When the inflated balloon is subjected to an ice bath, it shrinks. This is due to the fact that smaller volume gets occupied by the air/gas inside the balloon as the temperature decreases. Hence, causes the balloon walls to collapse.  

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Jellyfish, earthworms, grasshoppers, and humans are all classified in the same......................
Pepsi [2]
They are all classified in the same kingdom
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The MSDS for chloroform indicates that it is a clear liquid that has a pleasant smell and substantial vapor pressure. People sho
Norma-Jean [14]

Answer:

The correct option is the third option

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Also, reagents/chemicals that release poisonous/offensive gases are handled in the fume cupboard in the laboratory. Thus, If Malik is going to pour the chloroform, he should pour it in a fume cupboard to avoid inhaling it because of the toxicity of it's vapor.

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8 0
3 years ago
Galileo attempted to measure the speed of light by measuring the time elapsed between his opening a lantern and his seeing the l
Dafna11 [192]

Answer:

The distance is 2.58\times10^{7}\ m.

Explanation:

Given that,

Time \Delta t = 0.2\ s

The velocity is no more than a 14 % error in the speed of light.

So,

Velocity v= c\times 86\%

We need to calculate the distance

Using formula of speed

v = \dfrac{d}{t}

d = v\times t

Where, v = speed

d = distance

t = time

Put the value into the formula

d = 3\times10^{8}\times\dfrac{86}{100}\times0.2

d=516\times10^{5}\ m

We know that,

The one side distance d' is

d'=\dfrac{d}{2}

d'=\dfrac{516\times10^{5}}{2}

d'=2.58\times10^{7}\ m

Hence, The distance is 2.58\times10^{7}\ m.

5 0
3 years ago
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victus00 [196]

The work done is 140.3 J

Explanation:

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8 0
3 years ago
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