Answer: ultraviolet
Explanation:
define the artificial silk?
Answer:
Artificial silk or art silk is any synthetic fiber which resembles silk, but typically costs less to produce.
Explanation:
Answer:
Artificial silk or art silk is any synthetic fiber which resembles silk, but typically costs less to produce. Frequently, "artificial silk" is just a synonym for rayon. When made out of bamboo viscose it is also sometimes called bamboo silk.
A high-temperature gas is compared to the same gas at lower temperature. Which of the following statements is true?
A. Every molecule in the high-temperature gas is moving faster than every molecule in the low-temperature gas.
B. The average molecular speed in the high-temperature gas is faster than the average molecular speed in the low-
temperature gas.
C. Both A and B are true.
D. Neither A nor B is true.
Answer:
I think it is C
Explanation:
If the temperature of a gas increases, the gas particles have a higher average speed as they gain kinetic energy. They collide more frequently with the walls of the container, which produces a bigger pressure.
Is induced current the same as induced voltage?
Answer:Lenz's Law of Electromagnetic Induction. ... This voltage is called an induced emf as it has been induced into the conductor by a changing magnetic field due to electromagnetic induction with the negative sign in Faraday's law telling us the direction of the induced current (or polarity of the induced emf).
Explanation:
ASAP!!!
What is the purpose of a heavy stream appliance?
provides breathable air from attached air tanks
focuses the fluid flow into a heavier stream
moves or removes smoke and gases from buildings and passageways
removes citizens from burning or hazardous structures
Answer:
B is the answer.
Explanation:
I am doing the same Assignment.
help meeeeeeeeeeeeeeeeeeeeeeeee
Answer:
Just like a chemical reaction.
What is a pulley and the how does it make lifting heavy loads easier?
providing trademark protection
Answer:
what are you asking exactly?
What is the temperature increase of 4.0 kg of water when it is heated by an 8.0 ^102 W immersion heater for exactly 10.0 min? (cp = 4186 J/kg·°C)
Answer:
ΔT = 28.667°C is the answer.
Explanation:
Given,
Mass of water = 4.0 kg
Water is heated by = 8 × 10² W = 800 W
Time = 10 min = 10 × 60 = 600 s
Now,
using the equation of specific heat,
Q = mcΔT
where c is the specific heat capacity of water = 4186 J/kg°C
Q = Pt
Substituting,
Pt = mcΔT
800 × 600 = 4 × 4186 × ΔT
480000 = 16744 × ΔT
ΔT = 28.667
∴Temperature increased, ΔT = 28.667°C
Complete the passage to describe wave interaction of diffracted waves.
Diffracted waves of light interact with other waves and interference occurs. When the interference is constructive, this is shown as a
band on the screen. When the interference is destructive, this is shown as a
band on the screen.
Answer: When the interference is constructive, this is shown as a bright band on the screen. When the interference is destructive, this is shown as a dark band on the screen.
Explanation: edge 2021
Answer:Bright and Dark
Explanation:
Please help! I will give brainliest! Also can you please explain why it’s that answer. Thanks!
Answer:
B
Explanation:
Forces are pushes or pulls. They can be balanced or unbalanced. If unbalanced they can change the shape of objects and change the way they are moving (speed-wise)
A body of mass 36 g moves with SHM of amplitude A = 13 cm and period T = 12 s. At
time t=0 the displacement, x, is 13 cm. (a) Find the velocity when x = 5 cm. (b) Find the
force acting on the body when t = 2 s.
Answer:
Explanation:
.......................
what causes a ball rolling across the floor to slow down low of motion
Answer:
Friction is a force that slows down moving objects. If you roll a ball across a shaggy rug, you can see that there are lumps and bumps in the rug that make the ball slow down. The rubbing, or friction, between the ball and the rug is what makes the ball stop rolling.
Seasons change because: A. Earth is titled on its axis as it revolves around the Sun B. Earth rotates on its axis. C. The amount of energy from the Sun changes. D. Earth's distance from the Sun changes.
Answer:
Its A
Explanation:
Testing shows that a sample of wood from an artifact contains 12.5% of the original amount of carbon-14. Given that the half-life of carbon-14 is 5730 years, how old is the artifact?
A. 22,920 years
B. 17,190 years
C. 11,460 years
D. 5730 years
Answer:
B. 17,190
Explanation:
got it right, trust
The age of the artifact is 17190 years. So, the correct option is B.
What is meant by half life ?The amount of time needed for half of a radioactive sample's atomic nuclei to spontaneously decay (transform into another nuclear species by producing particles and energy) is known as the half-life.
Here,
Amount of Carbon-14 present in the given sample = 12.5 %
Given that the half-life of Carbon-14 is 5730 years. That means after a period of 5730 years, the percentage of Carbon-14 present in the sample will be 50% of the original amount.
So, age of the artifact when 50% is present is 5730 years.
Thus, after a period of 2 half-lives, the amount of carbon-14 present will be, 25%.
So, age of the artifact when 25% is present,
t = 2 x 5730 = 11460 years
Therefore, we can say that,
The age of the artifact when 12.5% is present,
t' = 3 x 5730 = 17190 years
Hence,
The age of the artifact is 17190 years. So, the correct option is B.
To learn more about half-life, click:
https://brainly.com/question/24710827
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how does the value of the electrostatic force vary with the distance between them?
According to Newton’s second law, the mass of an object is 120kg and it is accelerating at a rate of 5m/s2 . The object’s force would be
Answer:
F = 600 N
Explanation:
The second law is F = m * a
The mass (m) is in kg = 120
The acceleration in in m/s^2 = 5
The force is in Newtons.
m and a do not require any conversions. They are in the correct units.
F = 120 * 5
F = 600 N
Answer if you actually have the answer unlike Miss Madhumitaa!!!!
A 20.0 cm tall object is placed 50.0 cm in front of a convex mirror with a radius of curvature of 34.0 cm. Where will the image be located, and how tall will it be? Please show all work. Use the steps below
Step 1: Find the focal length, step 2: find the image distance using the mirror equation step 3: Use the magnification relationship to find the image height.
Explanation:
Hey Why you wrote my name hn?
how would you describe gravity?
Answer:
An intangible force that attracts objects to each other The weight of the Earth is what holds you on the ground and causes objects to fall.
Explanation:
Explanation:
I would describe it as a force that keeps Earth from floating away and keep us humans and other objects on earth's surface.
Always swim with a _____, no matter where you are
A.Partner
B.bikini
C.floatation device
D.hair cap
Help ASAP!
Answer:
A.
Explanation:
Never swim alone just in case something happens
Answer:
the answer is partner
Explanation:
this is common sense. if you are drowning or need help your partner will either be able to help you, or get help this is why u should NEVER swim alone no matter where or who you are. May i be marked brainliest?
doc based on this lab: https://phet.colorado.edu/sims/html/wave-on-a-string/latest/wave-on-a-string_en.html
Answer:
hope it helps make brainlliest ty
electrons that move away from their atoms cause?
Explanation:
when a positive charged object is placed near a conductor electrons are attracted the object when electric voltage is applied an electric field within the metal triggers the movement of the elections making them shift from one end to another end of the conductor electrons will move toward the positive side
Minute after minute, hour after hour, day after day, ocean waves continue to splash onto the shore. Explain why the beach is not completely submerged and why the middle of the ocean has not yet been depleted of its water supply. A) Ocean waves can only bring water to the shore but cannot take it back. The momentum of the water particles switches direction when the wave hits the shore and this momentum takes all the water back into the ocean. B) Ocean waves bring the water and also take it all the way back into the ocean. As such, water does not pile up on the beach. C) Ocean waves can only bring energy to the shore; the particles of the medium (water) simply oscillate about their fixed position. D) None of the choices are correct.
Answer: C. Ocean waves can only bring energy to the shore; the particles of the medium (water) simply oscillate about their fixed position.
Explanation:
The reason why the beach is not completely submerged and the reason why the middle of the ocean has not been depleted of its water supply is due to the fact that water isn't transported by ocean waves.
It should be noted that even a single drop of water cannot be brought by the ocean wave to the shore from the middle of the ocean.
The only thing that the ocean waves can bring to the shore is energy. Hemce, the water particles oscillate in their fixed position which is vital in making sure that the beach isn't piled up with water.
You could take magnet and ____ it in half and all the pieces would have ____ and ____ ______ .
You could take a magnet and break it into pieces and all of the pieces would have north and south poles.
Help me out please, don't send links
Answer:
==> C. represent troug of a transverse wave
is the correct answer of this question
hope it helps
which of the following is true of inertia
a) it is a property of motion
b) it is measured by weight
Answer:
it is a property of motion
A measure of an object's is a measure of the object's inertia.
Answer: Mass is the quantity of matter in an object. More specifically, mass is a measure of the inertia, or “laziness,” that an object exhibits in response to any effort made to start it, stop it, or otherwise change its state of motion. Weight is the force of gravity on an object.
who is the first physicist and what did he invented?
Answer:
hippocrates
I guess..........
pls help ASAP i have already failed this test once i cant fail it again
Answer:
Petrochemicals are a set of chemical compounds that fuel a wide array of products across the globe. They are made of hydrocarbons that are separated and extracted from petroleum (crude oil) and natural gas and are at the core of multiple industries, including: Cosmetics. Electronics. Packaging.
Answer:
B. I think Gasoline, natural gas, and diesel fuel
I'm truly sorry if it's wrong :(
Explanation:
- Find the velocity of a wave in the ocean if the wavelength is 2.0m and the frequency is 0.56Hz.
Please please help
Differentiate between:
a. Compression and Rarefaction
Answer:
Explanation:
Compression
The region in a medium where the distance between the vibrating molecules is minimum is compression.
This is the region with higher air pressure than the surrounding .
Rarefaction
The region in a medium where the distance between the vibrating molecules is maximum is rarefaction.
This is the region with relatively low air pressure.
hope it helps :)