Answer:
false
Explanation:
Answer:
True
Explanation:
What determines the pitch of a sound?
the amplitude
the medium
the frequency
the decibel level
Answer:
frequency
Explanation:
what wave is caused by vibration
sound waves, water waves, or seismic waves.
Answer:
In the first part of Lesson 1, it was mentioned that sound is a mechanical wave that is created by a vibrating object. The vibrations of the object set particles in the surrounding medium in vibrational motion, thus transporting energy through the medium.
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My actual question: How does the universe work and what is beyond it. It doesn't have to be correct, it just needs to be a theory (at least)
The universe is everything, so it isn't expanding into anything. It's just expanding. All of the galaxies in the universe are moving away from each other, and every region of space is being stretched, but there's no center they're expanding from and no outer edge to expand into anything else.
PLEASE HELP LINE GRAPH-SCIENCE
Answer:
answer is B.
Explanation:
The reason it is B. is because line graphs show data through a period of time.
Part F What are some potential applications of a material that make things invisible?
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 :)
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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:
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:
https://brainly.com/question/11278589
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this is grades i need a good grade
so plz help me
Answer:
Elastic Potentional Energy is with the second answer
Mechanical Energy is with the last answer
Gravitational Potential Energy is with the first answer
Explanation:
Sorry this took so long it was a bit hard to remeber at first but I got it :)
Mark me as branliest if it is correct
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.
Now, perform the experiment. Using the straw, blow air onto the sand in pan 3. Then use the hair dryer to blow air on the sand in pan 4. Write down your observations about the sand in each pan.
Weathering, Erosion
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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.
Why is it better to wear a white shirt on a hot summer day instead of a black shirt?
A) A white shirt absorbs all colors of light and would be cooler in the sun.
B) A black shirt absorbs all colors of light and would be cooler in the sun.
C) A white shirt reflects all colors of light and would be cooler in the sun.
D) A black shirt reflects all colors of light and would be cooler in the sun
Answer:
C
Explanation:
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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
How can you make a sound louder?
adding more frequency
removing energy
removing frequency
adding more energy
Answer:
BY adding more energy
Explanation:
Because by adding energy it will cause the string/sound to vibrate more which can cause more air particles to more and longer making the sound louder.
Hopping is performed on 2 feet
True
False
Answer:
Dude it's true that hopping can be perform on 2feet.
Forces that cause a change in the motion of an object.
Wobbly Forces
Net Forces
Unbalanced Forces
Balanced Forces
Answer:
balance forces☽︎☽︎☽︎☽︎☽︎☾︎☽︎☽︎☽︎☽︎
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.
What do you have to do to become faster at running?
Answer: Get stronger. Strength is critical to running fast because the more force you can exert against the ground the faster you can run.
Apply your new strength. Being strong is important for sprinting, but the ability to apply it is even more important. Sprinters move in a horizontal direction.
Take longer steps more quickly. Today, the concept of exerting more force against the ground is very popular for improving speed. ...
Run fast to get fast. Of all the strategies described in this article, this is the most important and often the most overlooked.
Explanation:
Answer:
i sa train as much as possible
Explanation:
that's why im a track star
Average speed of a car is 60 km/hr, how far did it travel in 2.5 hours?
Answer:
150
Explanation: