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3 years ago

Calculate the length of a simple pendulum that oscillates with a frequency of 0.4Hz g=10m/s2 , ^=3.142

Physics

1 answer:

earnstyle [38]3 years ago

4 0

Answer:

Explanation:

For simple pendulum the formula is

$T=2\pi\sqrt{\frac{l}{g} }$

Where T is time period , l is length and g is acceleration due to gravity .

$\frac{1}{n} =2\pi\sqrt{\frac{l}{g} }$

n is frequency

Putting the values

$\frac{1}{.4} =2\pi\sqrt{\frac{l}{10} }$

$\frac{l}{10} = .1584$

l = 1.584 m

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If two connected points objects pass through the same set of three points, the shapes created by each will be identical, regardl

djverab [1.8K]

Answer:

True

Explanation:

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3 years ago

Five liters of air at 50 c is warmed to 100c what is the new volume if the pressure remain constant

KonstantinChe [14]

To solve the problem, we can use Charle's law, which states that for an ideal gas at constant pressure the ratio between absolute temperature T and volume V remains constant:
$\frac{T}{V}=k$
For a gas transformation, this law can be rewritten as
$\frac{T_1}{V_1}= \frac{T_2}{V_2}$ (1)
where 1 and 2 label the initial and final conditions of the gas.

Before applying the law, we must convert the temperatures in Kelvin:
$T_1 = 50^{\circ}C + 273 = 323 K$
$T_2 = 100^{\circ}C+273=373 K$
The initial volume of the gas is $V_1 = 5 L$ , so if we re-arrange (1) we find the new volume of the gas:
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3 years ago

Objects that are able to roll have what type of energy?

sashaice [31]

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3 years ago

Potassium-41 has 19 protons. How many neutrons does this isotope have ?<br>

AysviL [449]

Answer:

20 neutrons

Explanation:

This will get you the mass number of the most abundant potassium isotope. You now know that the most abundant isotope of potassium contains 20 neutrons. All isotopes of potassium will have the same number of protons inside their nucleus, i.e. 19 protons.

I hope this helps you.

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3 years ago

If the beach above is preserved by depositing sand over a wider area into the water, which of the following will most likely res

Scorpion4ik [409]

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Option A

<u>Explanation:</u>

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Corrasion occurs when the waves remove dirt from the floor (like pebbles) and rotate it at the bottom of the rock. The shoreline is usually longer. Softer areas are covered with sediment from hard areas and rocks are removed.

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3 years ago