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erma4kov [3.2K]
3 years ago
13

A simple pendulum with a length of 2 m oscillates on the Earth's surface. What is the period of oscillations?

Physics
1 answer:
katrin [286]3 years ago
5 0

Answer:

Period, T = 27.84 seconds

Explanation:

Given the following data;

Length of pendulum = 2m

We know that acceleration due to gravity on earth is equal to 9.8 m/s²

To find the period of oscillation of the simple pendulum;

Mathematically, it is given by the formula;

Period, T = 2 \pi \sqrt {lg}

Substituting into the equation, we have;

Period, T = 2 * 3.142 * \sqrt {2*9.8}

Period, T = 6.284 * \sqrt {19.6}

Period, T = 6.284 * 4.43

Period, T = 27.84 seconds

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The net force acting on the airplane is 25N.

Forces acting on the paper airplane when it is in the air:

  • The forward force generated by the engine, propeller, or rotor is called thrust. It resists or defeats the drag force. It operates generally perpendicular to the longitudinal axis. However, as will be discussed later, this is not always the case.
  • Drag is an airflow disruption generated by the wing, rotor, fuselage, and other projecting surfaces that causes a backward, decelerating force. Drag acts backward and perpendicular to the relative wind, opposing thrust.
  • Weight is the total load carried by airplane, including the weight of the crew, fuel, and any cargo or baggage. Due to the influence of gravity, weight pulls the airplane downward.
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Given.

Weight of the paper airplane, F1 = 16N

The force of air resistance, F2 = 9N

Net force = F1 + F2

Net force = 25N

Thus, the net force acting on the airplane is 25N.

Learn more about the net force here:

brainly.com/question/18109210

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1 year ago
Which of the following best describe the particles in a liquid.
VashaNatasha [74]
A. fixed volume, changeable shape.
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3 years ago
What happens to particles of a substance as its temperature increases? A the average kinetic energy increases B the average kine
Gemiola [76]
The answer is A. When the the temperature increases the kinetic energy increases
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2 years ago
All music, _______ in the world, is from only ______ notes.​
AnnZ [28]

Answer:

All music in the world, is form only two notes and those notes are described below in detailed explanation.

Explanation:

In the chromatic scale, there are basically seven central musical notes, designated A, B, C, D, E, F, and G. They individual express a separate pitch or frequency. For illustration, the "central" A note has a pitch of 450 Hz, and the "common" B note has a pitch of 495 Hz.

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The last page of a book is numbered 764. The book is 3.0 cm thick, not including its covers. What is the average thickness (in c
Inessa [10]

Answer:

Thickness of each page will be 0.00785 cm

So option (E) will be correct answer

Explanation:

We have given that last page on the book is numbered as 764

So total number of pages in the book =\frac{764}{2}=382pages ( as each page is numbered in both side )

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We have to found the thickness of the each page

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