Somebody plz answer these 5 only thanks!!!
Will mark as brainliest
:D
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True
True
True
True
False
Answer:
false
true
true
true
false
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Wh following areas would most likely have the deepest layer of topsoil
A person runs 400 meters in a straight line. Determine their distance and displacement. Is the distance equal to the displacement for a person that runs 2.5 times around a circular track?
The Moon is made up of minerals similar to those on Earth, which areA. rilles.B. lunar breccias.C. silicates.D. highlands.
What does the object on the screen below model?A. MoleculesB. The orbit of the moon around the EarthC. The orbits of the planets around the SunD. Electronic circuits
1. Orbit
2. Rotation
3.Revolution
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Answer: 2nd option, Rotation
I hope this helps, and Stay Safe! :)
Answer:
rotation
Explanation:
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B. Sample A would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the largest.
C. Sample C would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the smallest.
D. Sample C would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the largest.
Answers
Answer: Option C: Sample C would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the smallest.
Explanation:
The absorption coefficient of the samples is given. Sample A has 30%, Sample B has 47% and Sample C has 62%. This means that sample C absorbs the most percentage of energy incident on it. The energy in the reflected wave would be least. Hence, it would be best to use for a room to make it soundproof.
The correct answer is Option C) Sample C would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the smallest.
As the coefficient of absorption would define the energy present in the reflected wave, the material C has the highest percentage of absorption i.e. 62% and would be best suitable to make a sound proof room.
b. a cup of cold water
c. a hot tub full of hot water
d. a large bucket of hot water
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The final object will move with a speed of 1.9 x 10⁻² m/s.
What is law of conservation of momentum ?
According to the law of conservation of momentum, when two objects meet in a closed system, the sum of their momentums before and after the collision is constant.
Here,
Initial velocity of the bullet, u = 100 m/s
Mass of the bullet, m = 15 g = 0.015 kg
Mass of the object, M = 75 kg
Total momentum before collision, P₁ = mu + (M x 0)
P₁ = 0.015 x 100
P₁ = 1.5 Kgm/s
Total momentum after collision, P₂ = (m + M)v
P₂ = (0.015 + 75)v
P₂ = 75.015 v
According to law of conservation of momentum,
P₁ = P₂
1.5 = 75.015 v
Therefore, the speed with which the final object moves,
v = 1.5/75.015
v = 1.9 x 10⁻² m/s
Hence,
The final object will move with a speed of 1.9 x 10⁻² m/s.
To learn more about law of conservation of momentum, click:
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speed of impact that is 44.27 m/s
or 159.38 km/h
time until impact is 4.525
and last is the Energy at impact which I calauated outcome was 73500.00 joules
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Final answer:
When you rub your wool socks on a carpeted floor and then touch a metal doorknob, you get shocked. This happens due to the transfer of electrons from the carpet to the socks, resulting in a buildup of negative charge which is discharged when you touch the grounded doorknob.
Explanation:
When you vigorously rub your wool socks on a carpeted floor, you transfer electrons from the carpet to the socks through friction. This creates a buildup of negative charge on the socks. When you then touch a metal doorknob, which is grounded, the excess electrons on your socks quickly flow to the doorknob, resulting in a sudden discharge of static electricity and a shock.
Learn more about Static electricity here:
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Let's assume that the coordinate system is defined as positive in the first quadrant.
The system has its origin in the place where Ingrid kicks the football ball.
We have then that the horizontal component is given by:
Rewriting we have:
Rounding the obtained result we have:
Answer:
The horizontal component of the initial velocity to the nearest tenth is:
is correct answer => 8.5 m/s