Luke stands on the edge of a roof throws a ball downward. It strikes the ground with 100J of kinetic energy. Luke now throws ano
1 answer:
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Answer:
A.
B.
Explanation:
The frequency has an inversely proportional relationship with the concept of wavelength, the greater the wavelength, the lower the frequency. For electromagnetic waves, the frequency is equal to the speed of light, divided by the wavelength.
A.
B.
Answer:
The magnification is
Explanation:
From the question we are told that
The object distance is
The focal length is
From the lens equation we have that
=>
substituting values
=>
=>
The magnification is mathematically represented as
substituting values
Explanation:
We know that in a projectile motion time of flight
So, we can notice that time of flight is dependent only on height from which the projectile is thrown. The more the height the more will be time of flight. So, if we increase the height the time of flight of the projectile will certainly increase.