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Readme [11.4K]
3 years ago
12

The diagram shows a person holding a bow and arrow.

Physics
2 answers:
denis-greek [22]3 years ago
8 0
Releasing the string
katen-ka-za [31]3 years ago
8 0

Answer:

releasing the string

Explanation:

In a bow-arrow system, the potential energy stored by pulling the string backwards gets converted to kinetic energy when the string is released. Thus, more the string is pulled backwards, more potential energy would be stored. When the string is released, the potential energy reduces and converts to kinetic energy. Therefore, by releasing the string, the kinetic energy increases.

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During a lab, a student tapes a ruler to a lab table and sets the ruler in motion. A laser detector pointed at the ruler records
zimovet [89]

Answer:

Four; Two; One; Three

Explanation:

During a lab, a student tapes a ruler to a lab table and sets the ruler in motion. A laser detector pointed at the ruler records how many times the ruler vibrates back and forth in a period of time.

Pitch or frequency is defined as the number of cycles per unit time. We can calculate the pitch for each trials i.e.

Trial one, pitch=\dfrac{10}{0.25}=40\ s^{-1}

Trial two,  pitch=\dfrac{11}{0.30}=36.67\ s^{-1}

Trial three,  pitch=\dfrac{13}{0.31}=41.93\ s^{-1}

Trial four,  pitch=\dfrac{12}{0.33}=36.36\ s^{-1}      

Hence, the order of the trials from least to greatest pitch is :

Trial four, Trial two, Trial one and Trial three i.e. option (d) is correct.                        

6 0
3 years ago
What is a vector and it is measured in what​
Step2247 [10]

Answer:

A vector is a quantity that has both magnitude and direction .

I don't think it has a unity

5 0
3 years ago
Read 2 more answers
How can gravitational energy play an important part of my life
m_a_m_a [10]

Answer:

Explanation:

Well, lets say you park your car on the top of a hill, gravitational energy prevents it from the car falling back. Or a snow pack, aka before a potential avalanche. Though gravity cannot keep it safe forever, gravitational energy keeps it from crashing asap. In this case, it gives you time to escape. Altogether, gravitational force keeps the earth in it's atmosphere.

8 0
3 years ago
What do we call the quantity of matter that an object contains?
german

Answer: A MASS

Explanation:LOOKED IT UP

3 0
3 years ago
How are steam powered boats different from sailboats
Alex
Steam powered boats run from an engine, using power, gears, and cranks to function.

Sailboats use no engine and rely on winds to move and change the direction of the boat. 
3 0
3 years ago
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