Complete Question
A small block is released from rest at the top of a frictionless incline. The distance from the top of the incline to the bottom, measured along the incline, is 3.40 m. The vertical distance from the top of the incline to the bottom is 1.09 m. If , what is the acceleration of the block as it slides down the incline plane
Answer:
The acceleration is
Explanation:
From the question we are told that
The distance from top to bottom of the inclined plane measured along the incline is
The distance from top to bottom of the inclined plane measured along the vertical axis is
According to the SOHCAHTOA rule
=>
substituting values
=>
T
The acceleration of a block on a frictionless inclined plane is mathematically represented as
substituting values
The height of the oil column above the water in the vessel is determined as 2 cm.
<h3>
Pressure of the vessel</h3>
The pressure of the vessel due to water, oil and silver poured into the vessel is determined from mercury column.
let level of mercury = 20 cm + 0.5 cm = 20.5 cm
20.5 cmHg = 205 mmHg
1 mmHg = 133.32 Pa
205 mmHg = 27,330.6 Pa
<h3>Height of the liquids in the vessel</h3>
P = ρgh
where;
ρ is the density of water, oil and silver respectively
ρ = 1000 kg/m³ + 881 kg/m³ + 10,800 kg/m³ = 12,681 kg/m³
h = P/(ρg)
h = (27,330.6) / (12,681 x 9.8)
h = 0.22 m
h = 22 cm
<h3>Height of oil column</h3>
Oil is less dense than water and will float on water.
Height of oil column = 22 cm - 20 cm = 2 cm
Learn more about density here: brainly.com/question/6838128
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Answer:
Your answer should be B.
If your internal energy or <em><u>heat</u></em> of a system <em><u>decreases</u></em> then you know that you are taking that energy out and doing <em><u>work.</u></em>
Answer:
a magnet and sifter
Explanation:
a magnet will get all the iron filling and the sifter will separate the powder and sand