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Yanka [14]
3 years ago
14

Determine the acceleration that results when a 12 N net force is applied to a 3 kg object.

Physics
1 answer:
Vadim26 [7]3 years ago
3 0

Heya!!

For calculate aceleration, let's applicate second law of Newton:

\boxed{F=ma}

⇒ Being:

→ F = Force = 12 N

→ m = Mass = 3 kg

→ a = aceleration = ?

Lets replace according formula and leave the "a" alone:

12\ N = 3\ kg * \textbf{a}

\textbf{a} = 12\ N / 3\ kg

\textbf{a} = 4\ m/s^{2}

Result:

The aceleration of the object is of <u>4 m/s²</u>

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I can’t figure this out!!! Answer what you can , please.
tigry1 [53]

a/b. The ball has velocity vector at time t

\vec v=(v_x,v_y)=(v_0\cos63^\circ,v_0\sin63^\circ-gt)

where v_0=16\dfrac{\rm m}{\rm s} is the ball's initial speed and g=9.8\dfrac{\rm m}{\mathrm s^2}.

c. At its highest point, the ball has 0 vertical speed. This occurs when

v_0\sin63^\circ-gt=0\implies t=1.5\,\mathrm s

d. Recall that

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0^2-(v_0\sin63^\circ)^2=-2g\Delta y\implies\Delta y=10\,\mathrm m

e. This is just twice the time it takes for the ball to reach its maximum height, t=2.9\,\mathrm s.

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4 0
4 years ago
How are a wave's energy and the wave's amplitude related?
dem82 [27]
Answer:
Energy is proportional to the square of the amplitude

Explanation:
The energy of a certain wave is defined using its magnitude.
The two quantities are related directly. This means that as the amplitude of the wave increases, its energy increases and vice versa.

Energy is directly proportional to the square of the magnitude of the wave. This means that:
If we have new amplitude = 2 * old amplitude
We will have new energy = (2)² * old energy = 4 * old energy

Hope this helps :)
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Answer:

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