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ziro4ka [17]
4 years ago
8

How does hitting a ball with a tennis racquet involve action and reaction forces?

Physics
1 answer:
iragen [17]4 years ago
5 0

Answer:

In a tennis match, the racket exerts the action force on the ball and, as the ball hits it, it exerts an equal and opposite reaction force on the racket. The rocket launches because it pushes on the gas coming out the back end for the action force, while the gas pushes the rocket upward with a reaction force.

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A sound wave enters a new medium where sound travels faster. How does this affect the frequency and wavelength of the sound?
Sophie [7]

The frequency stays the same and the wavelength increases.

Explanation;

Sound waves are a type of mechanical wave which requires a material medium for transmission. The transmission of such waves occurs as a result of vibration of particles in the material medium. The faster the vibration of the particles the higher the speed of the sound waves.

When a sound enters a new medium where the sound travels faster, it means the vibration of particles is high, and the wavelength of the waves increases which means the speed of the wave has increased. The frequency on the other hand will remain constant.

8 0
3 years ago
Identify one common cuase of the inreasing of overweight and obese people in the United States
amid [387]

The most common one is junk food and sugary snacks are very very addicting! they are almost like drugs!!!

4 0
3 years ago
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The following table shows the duration of a year on some unknown planets of equal mass. Duration of Year Planet Duration of Year
Soloha48 [4]

Gravitational force between sun and planet is given by,

F=\frac{GMm}{r^{2}}

Thus, The force of gravitation is inversely proportional to the distance.

Kepler's law states that the square of period of planet is proportional to cube of semi major axis of its orbit.

The time period of planet is more when the gravitational force is less.

Thus, planet Y is closer to earth because sun exert greater gravitational force than planet Z.

8 0
4 years ago
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The molecular mass of CO2.
mylen [45]

Answer:

the molrcular mass of carbon dioxide id 44.01amu

Explanation:

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4 0
3 years ago
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A cart is pushed at a supermarket for a distance of 30 m South, then 15 m West and finally 5 m West. This entire motion lasts fo
PSYCHO15rus [73]

the speed would have to be somewhere between 1.667 or 1.666 miles per minute.

add 30, 15, 5 together and you will get 50

50 is the total miles traveled

then you multiply 30 by 1.666 and you will get 49.98 but it's still not quite 50 miles

if you multiply 30 by 1.667 and you will get 50.01 but its a little over to miles

i got the 30 from the minutes traveled

anyway that's the best i got for speed

3 0
3 years ago
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