Answer:
The rate of change of an object's velocity is called acceleration.
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。
How do yeast cells get the nutrients that keep them alive?
Answer:
vitamins, amino acids and fat acids
Explanation:
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.
Learn more about momentum here:
https://brainly.com/question/24030570
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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.
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.
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.
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 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:
ASAP Answer Both Questions Pls and Ty!!!
1. Omar is sliding along the school corridor. Draw a picture of Omar sliding along the floor. Add a force arrow to show the force of friction acting on Omar.
2. Press your hands very gently and rub them. Now press much harder and rub again. Describe what you observe. What does this tell you about the force of friction?
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:
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
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:
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
I need number two only
Answer:
d: ice is less dense than liquid water.
Explanation:
hope this helps! ( brainliest would be appreciated :)
~mina
ANSWER SOON PLS IM TIMED FIRST DO NOT GIVE ME ANY FILES OR ANY CHEATS FROM WEB PLS ANSWER CLEARLY THANK YOU OH What is the primary source of energy that drove the cycling of matter that formed the Grand Canyon?
the sun
the sun
Earth's hot interior
Earth's hot interior
erosion and weathering
Answer:
the sun and earths hot interior
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
PLEASE HELP :) THANK YOU Geologic processes change Earth's surface on varying scales of space and time. They range from rapid to very slow; from large to microscopic.
How does the time scale of slow geologic processes affect human perception of landforms on Earth? Provide details to support your answer.
Answer:
Human change the surface by mining it, falting it for land, we remove tree,plants, soil,mud, to build space for buidlings, farms, and etc hopes this help
Explanation:
PLZ ANSWER ASAP!!
( please)
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.
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!
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:
Tsunamis and regular oceanic waves vary in many ways; explain at least two (2) differences between tsunami waves and regular oceanic waves.
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).
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
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
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.
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!
Of all the planets, which is the most different from the others? Explain.
Answer: VENUS
Explanation:
Venus tiene una lenta rotación retrógrada, lo que significa que gira de este a oeste, en lugar de hacerlo de oeste a este como lo hacen la mayoría de los demás planetas mayores (Urano también tiene una rotación retrógrada, aunque el eje de rotación de Urano, inclinado 97.86°, prácticamente descansa sobre el plano.
Give 2 animals to combine their inherited traits ( traits they got from their parents )
Answer:
Cat and a dog
Explanation:
The cat might bark instead of meow because it has certain traits from the dog. The dog however may still bark because it is a dog!
How do the properties of air influence weather?