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Marianna [84]
3 years ago
13

Why does the time for 20 complete oscillations need to be taken in the pendulum oscillation experiment?​

Physics
1 answer:
stealth61 [152]3 years ago
3 0

Answer:

In order to minimize the uncertainty in the period, we measured the time for the pendulum to make 20 oscillations, and divided that time by 20

Explanation:

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A soil sample contains 55 percent sand, 25 percent clay, and 20 percent silt. What type of soil is present in the sample?
Step2247 [10]

Answer: D (sandy clay loam)

Explanation:

It is because it is 55 percent sand, and 25 percent clay, so it has to be more sandy than silty. Much of it is by sand, so it is sandy. Loam is a fertile soil of clay and sand, so it is D.

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For the following types
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A three-way 120 V lamp bulb that contains two filaments is rated for 100-200-300 W. One filament burns out. Afterward, the bulb
ololo11 [35]

Answer:

The larger resistance value is 144 ohms and the smaller resistance value is 48 ohms.

Explanation:

Given that Resistance, R, is inversely proportional to Power, the largest value of power will yield the smallest value of resistance and vice versa.

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P = V²/R

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R = 120²/100

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R = 48 ohms

8 0
4 years ago
Find the magnitude of the net electric force exerted on this charge. Express your answer in terms of some or all of the variable
Yuri [45]

Answer:

Th steps is as shown in the attachment

Explanation:

from the diagram, its indicates that twelve identical charges are distributed evenly on the circumference of the circle. assuming one of gthe charge is shifted to the centre of he circle alomng the x axis, as such the charge is unbalanced and there is need ot balanced all the identical charges for the net force to be equal to zero.

The mathematical interpretation is as shown in the attachment.

3 0
3 years ago
The product of 14 and a cubed
olya-2409 [2.1K]

Answer:

14 × a^3

Explanation:

Product means multiplication

Cubed means to the power of 3

6 0
4 years ago
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