Answer:
well all you would have to do is draw a picture of him sliding and an arrow
and as for the second one rub your hands together and tell them what you see and then explain if it was easy to do or if you had troubles because the force of friction will make your hands warm up which is why you see them rub their hands together in movies
Answer:
1. The Speed is 390
2. The Frequency is 425 Hz
3. The Wavelength is 1.3
Explanation:
1. To find the speed of a wave you have to do the formula of speed.
Speed = Wavelength x Wave Frequency.
Speed = 1.5 * 260
= 390
Explanation:
PLZ ANSWER ASAP!!
( please)
Plz help me again no links to anything
4. Convection in the mantle results in the movement of plates on Earth.
a. TRUE b. FALS
Robert uses a force of 22 newtons to move a 100 lb box a distance of 4 meters. How much work has he done?
50 newton-meters
88 newton-meters
400 newton-meters
2,200 newton-meters
Answer:
The answer is 88 newton-meters
Explanation:
What is the cause of most waves and how can this change waves' characteristics?
There are three main factors that affect wave formation: wind velocity, fetch, and duration.
Waves are most commonly caused by wind. Wind-driven waves, or surface waves, are created by the friction between wind and surface water. As wind blows across the surface of the ocean or a lake, the continual disturbance creates a wave crest.
In a recent hockey game, one player (m=100kg) was moving at a velocity of 8 m/s when he ran into another player (m=300kg) who was at rest (v=0m/s). After the collision, the two players were stuck together (moving with the same velocity). What was their velocity after the collision?
Their velocity after the collision was 2 m/s.
What is principle of conservation of momentum?
According to the principle of momentum conservation, momentum is only modified by the action of forces as they are outlined by Newton's equations of motion; momentum is never created nor destroyed inside a problem domain.
Given parameters:
one player (m=100kg) was moving at a velocity of 8 m/s initially.
Another player (m=300kg) who was at rest (v=0m/s) initially.
After collision they stuck together and let the velocity of them is v.
According to principle of conservation of momentum, total momentum remains conserved.
total initial momentum = total final momentum
100×8 + 300×0 = (100 + 300)v
400v = 800
v = 2.
Hence, their velocity after the collision was 2 m/s.
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Does air have weight? Explain your answer.
PLEASE HURRY!
Answer:
Yes, it does.
Explanation:
Air has mass, and anything with mass has weight. We can tell it has mass, because we can feel it when the wind blows.
Answer: Yes
Explanation:
It has mass and mass carries weight not trying to copy btw!
How are exothermic and endothermic reactions measured in a lab?
Answer:
Exothermic and endothermic are measured by a calorimeter.
How to tell the difference between them. If change is positive, then thermal energy was released, and the process is exothermic. If the change is negative, then thermal energy was absorbed, and the process is endothermic.
それらの違いを見分ける方法。変化が正の場合、熱エネルギーが放出され、プロセスは発熱します。変化が負の場合、熱エネルギーが吸収され、プロセスは吸熱反応です。
DONT ANSWER WITH A LINK PLEASE I NEED AN ANSWER FROM SOMEONE!
What is the kinetic energy of a 4,000 kg elephant that is running at 2 m/s? What is the kinetic energy of the elephant if it running at 4 m/s? How do the two kinetic energies compare with one another?
By definition of kinetic energy,
the kinetic energy of a 4,000 kg elephant that is running at 2 m/s is 8000 Jthe kinetic energy of a 4,000 kg elephant that is running at 4 m/s is 32000 Jthe kinetic energy at a speed of 4 m/s quadruples with respect to the speed of 2 m/s.Kinetic energy is a form of energy. It is defined as the energy associated with bodies that are in motion and this energy depends on the mass and speed of the body.
Kinetic energy is defined as the amount of work necessary to accelerate a body of a given mass and at rest, until it reaches a given speed. Once this point is reached, the amount of accumulated kinetic energy will remain the same unless there is a change in speed or the body returns to its state of rest by applying a force.
Kinetic energy is represented by the following expression:
Ec = ½ mv²
Where Ec is kinetic energy, which is measured in Joules (J), m is mass measured in kilograms (kg), and v is velocity measured in meters over seconds (m/s).
In this case, you know:
m= 4000 kgv1= 2 m/sv2= 4 m/sThen:
Ec1 = ½ mv1²
Ec1= ½ 4000 kg× (2 m/s)²
Ec1= 8000 J
and
Ec2 = ½ mv2²
Ec2= ½ 4000 kg× (4 m/s)²
Ec2= 32000 J
You can see that the kinetic energy at a speed of 4 m/s quadruples with respect to the speed of 2 m/s.
In summary:
the kinetic energy of a 4,000 kg elephant that is running at 2 m/s is 8000 Jthe kinetic energy of a 4,000 kg elephant that is running at 4 m/s is 32000 Jthe kinetic energy at a speed of 4 m/s quadruples with respect to the speed of 2 m/s.Learn more about kinetic energy and mechanical energy:
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I need number two only
Answer:
d: ice is less dense than liquid water.
Explanation:
hope this helps! ( brainliest would be appreciated :)
~mina
AYOO I NEED HELP plz
Answer:
1D
2C
3C
4C
5D
6D
7D
8D
9B
Explanation:
better give me points X﹏X
Answer:
1) D
2) C
3) D
4) C
5) D
6) D
7) D
8) D
9) B
Take these answers with a grain of salt.
The pressure of a cylinder with the following dimensions: radius 13.9 cm and height 34 cm; has a pressure of 172.9 kPa. If the pressure is reduced to 1.75 atm, what will be the volume of the gas inside the cylinder?
Answer:Experience has shown that several properties of a gas can be related to each other under certain conditions. The properties are pressure (P), volume (V), temperature (T, in kelvins), and amount of material expressed in moles (n). What we find is that a sample of gas cannot have any random values for these properties. Instead, only certain values, dictated by some simple mathematical relationships, will occur.
Explanation:
GIVING BRAINLIEST! WHAT IS ATMOSPHERE?
Answer:
The atmosphere of Earth is the layer of gases, commonly known as air, retained by Earth's gravity, surrounding the planet Earth and forming its planetary atmosphere
Answer:
here is ya answer
Explanation:
The atmosphere is the blanket of gases which surrounds Earth. It is held near the surface of the planet by Earth's gravitational attraction.
AYOO Hey plzzzzzzzzzzzzzzzzzzzzzzz
Answer:
Hold on Ill answer it..When do u need it by
Explanation:
Answer:
the answer is A
Explanation:
the industrial society and its revolution
What is the study of sound waves called?
short answer pls
Answer:
Acoustics
Explanation: It’s the branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound.
Answer:
Acoustics
Explanation:
Acoustics is the branch of physics concerned with the study of sound (mechanical waves in gases, liquids, and solids). A scientist who works in the field of acoustics is an acoustician. The application of acoustics in technology is called acoustical engineering.
What are air masses, and how do they work?
NEED HELP ASAP!
Answer:
Need help? I'll give it to you!
Explanation:
Air masses are formed when air stagnates for long periods of time over a uniform surface. The characteristic temperature and moisture of air masses are determined by the surface over which they form. An air mass acquires these attributes through heat and moisture exchanges with the surface.
Number the steps from when a stimulus is received to when the body reacts.
The stimulus is received by sensory receptors.
Motor neurons cause muscles to contract so the body can react to the stimulus.
The brain processes the information through interneurons.
Interneurons transfer response information to motor neurons.
Sensory neurons carry stimulus information to the brain or spinal cord
Answer:
answer
1,5,3,4,2
Number the steps from when a stimulus is received to when the body reacts.
1---The stimulus is received by sensory receptors.
5--- Motor neurons cause muscles to contract so the body can react to the stimulus.
3----The brain processes the information through interneurons.
4--- Interneurons transfer response information to motor neurons.
2---Sensory neurons carry stimulus information to the brain or spinal cord.
Explanation:
hope this helps!
PLEASE HELP! I think it's F but I'm not sure... Am I right???
The structural layers of the sun are shown in the cross-sectional diagram.
Which layer represents the chromosphere?
Select one:
a. C
b. D
c. E
d. F
Answer:
E
Explanation:
F seems more like a corona
Chimneys don't get smoke in the house because of...?
Choices:
-----------------------------------------
A. Archimedes's Principle
B. Bernoulli's Principle
C. Pascal's Principle
D. hydraulics
Answer:
B :D
Explanation:
The graph shows two runners participating in a race.
Which best describes the runners?
Daniela had a 5-meter head start, and Leonard caught up to her at 25 meters.
Daniela ran faster than Leonard through the entire race.
Daniela gave Leonard a 5-meter head start and caught up to him at 25 meters.
Daniela ran slower than Leonard, but she went faster at the end.
Answer:
'Daniela had a 5-meter head start, and Leonard caught up to her at 25 meters.'
Explanation:
hope that helps :)
The statement which best describes the runners is: A. Daniela had a 5-meter head start, and Leonard caught up to her at 25 meters.
What is a graph?A graph can be defined as the graphical representation of data (information) such as position and time, on both the horizontal and vertical lines, which are commonly called the x-axis and y-axis respectively.
The types of graph.In Science, there are different types of graph and these include the following:
Scatter plotBar graphPie chartDot graphLine graphIn conclusion, we can deduce from the position-time graph that Daniela had a 5-meter head start but Leonard caught up to her at 25 meters.
Read more on graphs here: https://brainly.com/question/25875680
Tsunamis and regular oceanic waves vary in many ways; explain at least two (2) differences between tsunami waves and regular oceanic waves.
Which phrases apply to the formation of the Grand Canyon?
Choose all that apply.
medium scale
long-term
small scale
short-term
large scale
Answer:
the answer should be 'small scale'
science-who ever gets this will get a brainlest, Options
earthquakes
volcanoes
hurricanes
The answer is Earthquakes.
Hope that this helped!
PLEASE HELP!! DUE SOON!!!
Which of the following would be considered an excellent source of vitamins?
A. yellow squash
B. milk
C. kidney beans
D. all responses are correct
The rate of change of an object's velocity is called _______.
Answer:
The rate of change of an object's velocity is called acceleration.
1.What do you think Sherman is right about?
2.What do you think Sherman is wrong about?
Answer:
Sherman is right about the green used to camoflauge the dragonflies.
He is wrong about them being the **same** dragonflies.
Sherman is correct that the dragonflies were camouflaged using green.
He is mistaken in thinking these are the same dragonfly.
Who was William Sherman?Sherman, who was raised in Ohio in a family with political clout, earned his West Point diploma from the US Military Academy in 1840. In order to pursue private commercial endeavors, he took a break from his military career in 1853.
He took up the role of superintendent of the Louisiana State Seminary of Learning & Military School in 1859; he left it when Louisiana withdrew from the Union. The institution is now known as Louisiana State University. Before to moving to the Western Theater in 1861, Sherman led a brigade of volunteers at the First Battle of Bull Run.
He was stationed in Kentucky where, as a result of his pessimism on the war's prospects, he experienced a breakdown that necessitated a brief period of leave.
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How do the properties of air influence weather?
How do yeast cells get the nutrients that keep them alive?
Answer:
vitamins, amino acids and fat acids
Explanation:
A pair of point charges, which have charges of –3µ C and –4µ C are separated by 2 cm. What is the value of the force between them
Answer:
pk
Explanation:
If a fossil contains 50% of the amount of carbon that a living animal contains, how many half lives have passed while it decayed? How old is the fossil? (half lives x 5730)
Answer:
Carbon 14 has a half life of 5730 years? I think this is right hope it helps!
Explanation:
The colors of light that televisions primarily use to make a picture are ______________.
Red, Black, and Green
Red, Yellow, Blue
Red, Green, and Blue
Green, Blue, Purple
Answer:
Red, Green, and Blue
Explanation:
Each of the pixels on a computer monitor or TV screen is composed of phosphors surrounded by a black mask. The different colors we see are results from different combinations and intensities of these three primary colors (Red, Green, and Blue).