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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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
What determines the pitch of a sound?
the amplitude
the medium
the frequency
the decibel level
Answer:
frequency
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 type of pressure system is shown by this symbol and what type of weather does it bring?
high pressure bringing fair weather
low pressure bringing fair weather
low pressure bringing rainy or stormy weather
high pressure bringing rainy or stormy weather
Answer:
Low pressure bringing rainy or stormy weather
Explanation:
A low pressure system is represented by a red L and warm and moist air will be combined and bring stormy weather and high winds.
Hope this helps
Forces that cause a change in the motion of an object.
Wobbly Forces
Net Forces
Unbalanced Forces
Balanced Forces
Answer:
balance forces☽︎☽︎☽︎☽︎☽︎☾︎☽︎☽︎☽︎☽︎
Sliding is typically performed in a lateral manor.
True
False
Answer:
false
Explanation:
Answer:
True
Explanation:
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
Pleasssseee help mee
Need help with stu*pid science thing that I keep getting wrong, augh!!
If we apply the ideas of density to the Earth's layers, which layer will be at the top?
granite
water
atmosphere
iron
Answer:
i think it is iron
Explanation:
its the only one that makes sense to me
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
One force pushes a stationary object east at 10 newtons, and another force pushes west at 5 newtons. Which way will the object move?
A.
east
B.
west
C.
north or south
D.
it will not move
Answer: A. East
Explanation: It will be going in the east direction at 5 newtons.
When one force pushes a stationary object east at 10 newtons, and another force pushes west at 5 newtons, then the object will move east,
Therefore the correct answer is option A.
What is Newton's second law?Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum.
F = ma
A stationary item will move east when one force pushes it east at 10 newtons and another force pushes it west at 5 newtons,
The net force on the stationary object = 10 Netwon toward east - 5 Newton toward the west
The net force on the stationary object would be 5 Newton toward the east direction resulting in the eastward motion.
Thus, the correct answer is option A.
Learn more about Newton's second law, here
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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.
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:
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.
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.
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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NO JOKING ! can someone pls help it's due tomorrow
read the passage then you have the questions pls help me
Answer:the Europeans fought violently for it.in all the violence.there was also torture, to answer 3
Explanation:
Says it in the last two sentence
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.
Hopping is performed on 2 feet
True
False
Answer:
Dude it's true that hopping can be perform on 2feet.
Average speed of a car is 60 km/hr, how far did it travel in 2.5 hours?
Answer:
150
Explanation:
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
On a weather map, lines joining places with the same air pressure are called ___?
fronts
fronts
air masses
isobars
Answer:
They are Isobars
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 :)