Answer:
B. Value you have recorded during your experiment.
Explanation:
In the observation section, those data is present which is collected during an experiment. Measurement of each key should be reported carefully. Data is usually present in the form of table, graph and figures.
This data can be represented in the tabular form because it is the best method to represent any data.
Therefore, in the observation section of lab report observer usually find the values which are recorded during an experiment.
Because of moisture-laden walls, climatic circumstances, Paints of lower grade the lowest portion of a house's walls near the floor seem cheap and start to peel off a few years after completion.
<h3 /><h3>How can one minimize that risk?</h3>
we can minimize this risk by
- Avoid getting water on the painted surfaces.
- Control the surrounding surfaces' condensation and humidity.
- Before painting, give the surfaces a thorough cleaning.
- Only paint freshly cleaned surfaces.
- Defend against heat and sunshine on the covered surfaces.
- Pick the appropriate primer and paint.
- Use effective painting techniques.
- Away from the coated surfaces, keep corrosive materials.
To know more about painting techniques visit:
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Answer:
<em>About four million tons of </em><em><u>matter</u></em><em> are converted to energy in the Sun’s core every second</em>
Explanation:
<u>The Sun
</u>
It's estimated that The Sun fuses near 600 million tons 
of hydrogen into helium every second. As a result, 4 million tons of matter are converted to energy every second according to Einstein's equation 
We should first calculate the highest point that ball reaches.
y' = 40 - 32t = 0
t = 40/32 = 1,25s
y = 25 feet.
To calculate average velocity we use simple formula:
Vav=s/t where s is traveled distance by the time t.
for t=2 we calculate y
y = 16
(i) for t = 2,5 y = 0
Vav = 16/0.5 = 32 feet/s
(ii) for t = 2.1 y = 13.44
Vav = 2.56/0.1 = 25.6 feet/s
(iii) for t = 2.01 y = 15.7584
Vav = 0.2416/0.01= 24.16 feet/s
it seems like the answer would be 24 feet/s. There is a way to calculate that.
Answer: This phenomenon happens due to upthrust exerted by water.
Explanation:
We know that,
Liquid Pressure is directly proportional to the height of the vertical column in the liquid.(P∝h)
When a bucket filled water is sunk into the water container, there occur difference in the pressure in top and bottom of the water container. Due to this, water exerts an upward force on the bucket filled with water. This is called Uprthrust.
Upthrust on the bucket makes the bucket filled with water lose some of it's weight and causes apparent loss in weight.
Hence, the bucket filled with water seems light while it sinks into water.
