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Nostrana [21]
3 years ago
14

Why does a ball accelerate as it rolls down a hill?

Physics
2 answers:
Anika [276]3 years ago
6 0
The ball accelerates because of gravity.
Allushta [10]3 years ago
5 0
Because there is a 'net force' on it.  That means that all the different
forces on it do NOT all cancel out.  Whenever there is a net force on
an object ... not zero force ... the object accelerates.  (That means that
either its speed or its direction changes.)  We've known this for about
300 years now.
The main force on the ball is the force of gravity.
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Which command is capable of creating connecting lines that have a rounded or sharp edge?
natima [27]

Answer:

it is dddd

Explanation:

6 0
2 years ago
Which plate will feel stress in the form of compression?.
Nonamiya [84]

A.oceanic plate diverging

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subject science

5 0
3 years ago
One way to cool a gas is to let it expand. When a certain gas under a pressure of 5.00 x 10^6 Pa at 25.°C is allowed to expand t
hichkok12 [17]

Answer:

The final temperature is T2= 5.35°C

Explanation:

Apply the Gay-lussacs's law we have

\frac{P1}{T1} = \frac{P2}{T2}

P1, initial pressure= 5.00 x 10^6 Pa

T1, initiation temperature= 25.°C

P2, final pressure= 1.07 x 10^6 Pa

T2, final temperature= ?

\frac{5.00 * 10^6}{25} =\frac{1.07 *10^6}{T2} \\

Cross multiplying and making T2 subject of formula we have

T2 =\frac{1.07 *10^6*25}{5.00 * 10^6} \\\\T2= \frac{26.75}{5} \\T2= 5.35

T2= 5.35°C

6 0
3 years ago
What are the horizontal and vertical parts of vectors called
topjm [15]
A 2-dimensional vector may be expressed by 
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where i and j are unit vectors along the x (horizontal) and y (vertical) axes respectively.
Ax =  horizontal part (x-component)
Ay = vertical part (y-component)

Alternatively, the vector may be written as
A = (Ax, Ay)

Answer: 
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7 0
3 years ago
A 271 kg motorcycle moves with a velocity of 5 m/s. What is its kinetic energy?
gregori [183]
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3 0
3 years ago
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