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Anit [1.1K]
2 years ago
5

What is net force?

Physics
2 answers:
Nataliya [291]2 years ago
8 0

Answer:

D

Explanation:

The net force is the combination of all forces acting on an object.

drek231 [11]2 years ago
5 0
The answer is d my friend :)
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pV/T=const goodluke

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What event was seen as a symbol of the gradual relationship improvements between the United States and the Soviet Union as the C
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I think the answer is b but i cannot confirm cuz this is a challenging question

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How are energy time and power related physics?
olganol [36]
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The force on a dropped apple hitting the ground depends upon
yulyashka [42]

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2 years ago
A mass free to vibrate on a level, frictionless surface at the end of a horizontal spring is pulled 35 cm from its equilibrium p
saul85 [17]

Answer:

0.67 s

Explanation:

This is a simple harmonic motion (SHM).

The displacement, x, of an SHM is given by

x = A\cos(\omega t)

A is the amplitude and \omega is the angular frequency.

We could use a sine function, in which case we will include a phase angle, to indicate that the oscillation began from a non-equilibrium point. We are using the cosine function for this particular case because the oscillation began from an extreme end, which is one-quarter of a single oscillation, when measured from the equilibrium point. One-quarter of an oscillation corresponds to a phase angle of 90° or \frac{\pi}{4} radian.

From trigonometry, \sin A =\cos B if A and B are complementary.

At t = 0, x = 3.5

3.5 = A\cos(\omega \times0)

A =3.5

So

x = 3.5\cos(\omega t)

At t = 0.12, x = 1.5

1.5 = 3.5\cos(0.12\omega)

\cos(0.12\omega)=\dfrac{1.5}{3.5}=0.4286

0.12\omega =\cos^{-1}0.4286

0.12\omega = 1.13

\omega = 9.4

The period, T, is related to \omega by

T = \dfrac{2\pi}{\omega} = \dfrac{2\times3.14}{9.4}=0.67

5 0
3 years ago
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