Answer:
A) 0.25 Hz
B) 6 m
C) 1.5 m/s
Explanation:
The number of waves that pass a certain spot every 20 seconds = 5 waves
The distance between the crest = 6 m
A) The frequency of the wave, f = The number of cycles per second = 5/20 = 0.25 per second = 0.25 Hz
B) The wavelength of the wave, λ = The distance between crests = 6 m
C) The velocity of the wave, v = f × λ = 0.25/s × 6 m = 1.5 m/s.
When the spring is stretched by 15.2 cm = 0.152 m, the spring exerts a restorative force with magnitude (due to Hooke's law)

where
is the spring constant. Solve for
.

The amount of work required to stretch or compress a spring by
from equilibrium length is

Then the work needed to stretch the spring by 15.2 cm is

and by 15.2 + 13.7 = 28.9 cm is

so the work needed to stretch from 15.2 cm to 28.9 cm from equilibrium is

The car is traveling at v=12m/s. Kinetic energy is given by this formula:

We can see that if the kinetic energy depends on the speed quadratically. This means that if you want to increase the kinetic energy x times you would have to increase speed

times. We conclude from this that car would have to go:
no because there is no chance that it will possibly hit eachother
The correct option is (b) Sea breeze
During the day, susan notices that the wind is blowing onshore at the beach called sea breeze.
What is sea breeze?
- Any wind that flows from a big body of water onto or onto a landmass is called a sea breeze or an onshore breeze.
- Sea breezes form as a result of changes in air pressure brought on by the different heat capacities of water and dry land. Sea breezes are therefore more confined than prevailing winds.
- A sea wind is frequently seen along coasts after sunrise because land warms up far more quickly than water does when exposed to solar radiation.
- The sea wind front is significant because it can serve as a catalyst for afternoon thunderstorms and provide welcome cooling along the coast.
Learn more about the sea breeze with the help of the given link:
brainly.com/question/13015619
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