Answer:
part a = Light takes slightly more time to move around an invisible object than to move in a straight line. People can see this difference even if they can’t see the object.
part b = It works under hazy conditions, such as in fog, in a cloud, or when viewed through frosted glass.
part c = It’s hard to see objects in a fog or haze because light bounces off tiny particles suspended in the air.
part d = In fog, the light moves like a pinball and bounces off tiny particles suspended in the air. It takes longer for light to pass around an object.
part e = Scientists want the invisibility coating to guide light around an object. They don’t want the coating to emit or reflect light.
part f = Here are a few possible answers:
The material won’t heat up because it doesn’t absorb much light.
The material can be used for privacy.
The material can be used to hide important machines in the event of war.
Explanation:
All edmentum answers :)
Anna heated 15 g of Substance A to obtain 5 g of Substance B, 4 g of Substance C, and a certain amount of Substance D. Which statement is correct?
1. The mass of Substance D was 10 g less than the mass of Substance A.
2. The mass of Substance D was 1 g greater than the mass of Substance B.
3. The mass of Substance A was equal to the total mass of Substance C and Substance D.
4. The mass of Substance A was equal to the total mass of Substance B and Substance D
Please help me I need it ASAP! PLEASE!!
Recall that kinetic energy is the energy of motion. Use the information provided for each soccer ball in the image below to calculate the kinetic energy of each soccer ball (Round to the nearest hundredth). Use K.E. = 1/2 m v2 to got your answer.
Answer:
kinetic energy is the answer
I need 2 examples for each one of Newton's 3 Laws
Answer:
1. An object in motion will stay in motion: A car, and its breaks.
2. Force = mass x acceleration: Kicking a ball.
3. Equal or Opposite reaction: Tugging on your dogs leash as hes trying to run off.
Explanation:
What do you do if a dog is chasing you?
Answer:
run.
Explanation:
Answer:
The first thing to do if a dog charges you is to remain calm.
If the dog is trying to bite you, try and block the attack with something you have on you.
If the dog is large enough to push you over, tuck yourself up into a ball and clasp your hands around the back of your head
If the dog bites and holds, je.rking away can damage you more than if you stay in position. Remember to stay calm.
If you have the chance to run, try to get somewhere out of reach of the dog.
If you are near playground equipment, climp out of reach of the dog.
Sliding is typically performed in a lateral manor.
True
False
Answer:
false
Explanation:
Answer:
True
Explanation:
The position data for line 3 was recorded in 1-second intervals. Draw a graph with distance on the y-axis and elapsed time on the x-axis. Reference all distance and time measurements to dot 1. To plot a point, use the circle tool. To draw a line between points, use the line tool. To move a point or line, use the select tool.
Answer:
1+1=2 +1 =3 boom quick math]
Explanation:
Answer:
Part G:
0
3.5
6.5
9
11
12.5
13.5
14
Part H.
Which increases the amount of thermal energy on Earth according to scientists?
An increase in greenhouse gases has trapped heat.
More heat from Earth’s core is being conducted to the surface.
There is more convection occurring on Earth.
The sun has grown brighter.
Answer:
More heat from Earth’s core is being conducted to the surface.
Explanation:
According to scientists more heat from earth's core being conducted to the surface increases the amount of thermal energy.
What is thermal energy?
Thermal energy is defined as a type of energy which is contained within a system which is responsible for temperature rise.Heat is a type of thermal energy.It is concerned with the first law of thermodynamics.
Thermal energy arises from friction and drag.It includes the internal energy or enthalpy of a body of matter and radiation.It is related to internal energy and heat .It arises when a substance whose molecules or atoms are vibrating faster.
These vibrating molecules and atoms collide and as a result of which heat is generated in a substance , more the collision of particles , higher is the thermal energy.
Learn more about thermal energy,here:
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how are magnetic field lines helpful when studying magnets?
Answer:
If the magnetic field lines are closer to each other, the magnetic field strength is generally stronger. For example, in a bar magnet, the magnetic field lines are always densest when they are close to either pole. This signifies that the magnetic field gets stronger as we get closer to its source.
Explanation:
Explanation:
Earth's magnetic field is thought to play an important role in making the planet habitable. Not only does a magnetic field set the direction of our compass needles, it also acts as a shield of sorts, deflecting away solar wind that might otherwise eat away at the atmosphere.
On a weather map, lines joining places with the same air pressure are called ___?
fronts
fronts
air masses
isobars
Answer:
They are Isobars
True or false?
Question In order for a throw-in to be legal these three things need to happen:
The thrower needs to be outside the playing field
Boot feet must be in contact with the ground
The ball must be thrown from over head with both hands