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.
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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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
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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
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
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 :)
Forces that cause a change in the motion of an object.
Wobbly Forces
Net Forces
Unbalanced Forces
Balanced Forces
Answer:
balance forces☽︎☽︎☽︎☽︎☽︎☾︎☽︎☽︎☽︎☽︎
Hopping is performed on 2 feet
True
False
Answer:
Dude it's true that hopping can be perform on 2feet.
Sliding is typically performed in a lateral manor.
True
False
Answer:
false
Explanation:
Answer:
True
Explanation:
Average speed of a car is 60 km/hr, how far did it travel in 2.5 hours?
Answer:
150
Explanation:
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 determines the pitch of a sound?
the amplitude
the medium
the frequency
the decibel level
Answer:
frequency
Explanation:
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:
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.
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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.
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.