kể tên các đại lượng vật lý đã học cho đến lớp 10???
Answer:
B. bisector of an angle.
Audent se when the stone me themelo CD The student semblance theo of the a) 2 shows the rings to them and 52.00 450 Mao Mass of Flo.2.1 Record the mass shown by the balance in Table 21 Table 2.1 object mas volumelom density in g/cm A 131 25 10.1
Answer:huh
Explanation:
PLZ FAST Scientific knowledge is both long lasting and always _______.
changing
non-observable
permanent
untestable
what is known physical quantity
Answer:
those quantity which are measured and expressed on mathematical process is called physical quantity
4.
Which of the following statement is correct
The density of an object does not remains same if we take small quantity of that substance.
The density of an object remains same irrespective of its shape, size and quantity.
The density of an object does not remains same irrespective of its shape and size.
The density of an object remains same only if its shape and size remains same.
The density of an object remains same irrespective of its shape, size and quantity.
Explanation:
Density is an intensive property. This means that regardless of the object's shape, size, or quantity, the density of that substance will always be the same. Even if you cut the object into a million pieces, they would still each have the same density. It is because density in an intensive property of matter.
please mark brainliest
write some example of unit
Answer:
The definition of a unit is a fixed standard amount or a single person, group, thing or number. An example of a unit is a single apartment in an apartment building. ... (sciences) A standard measure of a quantity. The centimetre is a unit of length.
Answer:
Km, m, s, m/s, m/s^-2
Explanation:
Well there is a lot more
determine the number of significant figures in 00.6022009
The number of significant figures in 00.6022009 is 7 .
The number of significant figures is 7.
Explanation:
Significant figures
The figures in a number that expresses the magnitude of a quantity to a specific degree of accuracy are known as significant digits.Digits from 1 to 9 are always significant and have an infinite number of significant figures.All non-zero numbers are always significant. For example, 684, 9.54, and 63.4 all have three significant figures.All zero’s between integers are always significant. For example, 2005, 8.005, and 10.05 all have four significant figures.All zero’s preceding the first integers are not significant. For example, 0.0038 has two significant figures.All zero’s after the decimal point are always significant. For example, 4.500, 43.00, and 950.0 all have four significant figures.All zeroes used solely for spacing the decimal point are not significant. For example, 6000 has one significant figure.Given :
The number 00.6022009
To find:
The number of significant figures in the number.
Solution
00.6022009
All zero’s preceding the first integers are not significant.
Zeros in between the integers are significant
So, the number of significant figures is 7.
Learn more about significant figures here:
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Tell me something about physical health ?
Hello!
Answer:
Regular physical activity in life improves strength and endurance, helps build healthy bones and muscles, helps control weight, reduces anxiety and stress, increases self-esteem, and it can improve blood pressure and cholesterol levels.
Hope this help<3
A cheetah has an average velocity of 70 mph. If a cheetah was chasing a water Buffalo for 23 miles, how long was the cheetah chasing its prey
Answer:
t=distance ÷ speed
23÷70
t=0.33 sec
A baseball player hits a ball out of the park and runs the bases which are 90 ft apart. What are the distance and displacement traveled?
Answer:
The distance is [tex]360[/tex] feet, and the displacement is [tex]0[/tex].
Explanation:
A baseball player hits a ball out of the park and runs the bases which are [tex]90[/tex] feet apart.
Distance [tex]=4(90)[/tex]
[tex]= 360[/tex] feet.
The displacement is [tex]0[/tex] since the player begins and ends at home plate.
Learn more about distance, refer :
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.
Give two example of bodies that you see in daily lives,which are streamlined to reduce friction
Answer:
1) ironing a shirt 2) writing on surfaces 3) working of an eraser
A stone falls from the top of a building and hits the ground at a speed of 32 m/s.
The air resistance force on the stone
is very small and may be neglected.
Calculate the time of fall.
Answer:
Explanation:
first you would need the height of the building in meters then using the formula calculate 32 m/s ÷ the height of the building in meters and you will get your answer
quanto e 384400 convertido em ua
Answer:
Eu não sei
Explanation:
what happens to atoms as you move across the periods on the periodic table?
The angle of reflection is equal to the angle of incidence……….. [ ] A) always B) sometimes C) never D) under special conditions
Answer:
A) alwaysthis is ur answer
2. CHARLES MANSON WAS DIAGNOSED WITH
PERSONALITY DISORDER.
10 points
(A)NARCISSISTIC
(B) BIPOLAR
(C)ANTI-SOCIAL
(D)BORDERLINE
O Other
Answer:
The answer is C. anti social
Explanation:
Hope that helps!
Help pleaseeee!! if correct i’ll give brainliest
Answer:
14.35
Explanation:
25.5 m/s - 11.15 m/s = 14.35 m/s
Below you will see diagrams showing a trip taken by Fred and a trip taken by Frank. For each person, find their distance, displacement, average speed, and average velocity from A to B. Each square is 10 meters wide, and use words like north, south, east, and west for direction.
The first thing Fred did was go south for 4 seconds. If he wanted to cut his average speed in half, how long should that southward motion last (assuming the other two motions happen in the same time as shown)? Explain your reasoning.
Would this amount of wait-time also have halved his average velocity?
Part A
The completed table of values of the motion of Fred and Frank are;
[tex]\begin{array}{|l|c|c|}&\mathbf{Fred's \ Trip}&\mathbf{Frank's \ Trip}\\\mathbf{Distance}&150 \, m&120 \, m\\\mathbf{Displacement}&30 \, m&50 \, m\\\mathbf{Average \ Speed}&15 \, m/s&10 \, m/s\\\mathbf{Average \ Velocity}&3 \ m/s&4.1 \overline 6 \, m/s\end{array}\right][/tex]
Part B
The time the southward motion should last is 14 seconds
The reason the above values are correct is as follows;
The total distance is given by summing the length of the sides of the square that lay along the path
Known parameters:
For Fred's Trip, we have;
Distance = 60 meters South + 30 meters East + 60 meters north = 150 meters The total distance = 150 meters
Required:
The displacement = 30 meters East
Average speed = Total distance/(Total time)
Total time = 4 sec + 3 sec + 3 sec = 10 sec
Average speed = 150 m/10 sec = 15 m/s
Average velocity = Displacement/Total time
Average velocity = 30 m/10 sec = 3 m/s
Known parameters:
For Frank's Trip, we have;
Distance = 30 meters North + 60 meters East + 30 meters south = 120 meters
The total distance of Frank's trip = 120 meters
Required:
The displacement = 50 meters East
Average speed = Total distance/(Total time)
Total time = 5 sec + 5 sec + 2 sec = 12 sec
Average speed = 120 m/12 sec = 10 m/s
Average velocity = Displacement/Total time
Average velocity = 50 m/12 sec = 4.1[tex]\overline 6[/tex] m/s
Therefore, we have;
[tex]\begin{array}{|l|c|c|}&\mathbf{Fred's \ Trip}&\mathbf{Frank's \ Trip}\\\mathbf{Distance}&150 \, m&120 \, m\\\mathbf{Displacement}&30 \, m&50 \, m\\\mathbf{Average \ Speed}&15 \, m/s&10 \, m/s\\\mathbf{Average \ Velocity}&3 \ m/s&4.1 \overline 6 \, m/s\end{array}\right][/tex]
To reduce his speed in half, we have;
New average speed, s₂ = s₁/2
∴ s₂ = (15 m/s)/2 = 7.5 m/s
Let x represent the time for the southward motion, we have;
(150)/(6 + x) = 7.5
(6 + x) × 7.5 = 150
x = (150 - 7.5×6)/7.5 = 14
Therefore, the time for the southward motion should last for 14 seconds
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According to the law of conservation of energy, which statement must be
true?
A. Energy that is transformed is neither destroyed nor created.
B. Energy can change only from nuclear to chemical.
C. There is only one form of energy.
D. The total energy in a system can only increase over time.
Answer:
i hope it will help you
THANK YOU
Explanation:
thank you
Q. What is weak nuclear force?
Weak interaction, also called weak force or weak nuclear force, a fundamental force of nature that underlies some forms of radioactivity, governs the decay of unstable subatomic particles such as mesons, and initiates the nuclear fusion reaction that fuels the Sun.
A hard drive has 250 gigabytes of storage?
How much does it have measured:
a. In terabytes?
b. In microbytes?
If I am trying to test which brand of battery lasts the longest, what is my independent variable? My dependent variable?
Answer:
• Independent - brands of battery• Dependent - how long is time that the battery will lastExplanation:
Independent variable is the one you manipulate.Dependent variable is the one that you observe.can someone please help me with these
Answer:
1000mg = 1g
160cm = 1600mm
109g = 0.109kg
250m = 0.25km
14km = 14000m
1L= 1000ml
480cm = 4.8m
27g = 0.027kg
198g = 0.198kg
75ml = 0.075L
50cm = 0.5m
5L = 5000mL
16cm = 160mm
65g = 65000mg
2500m = 2.5km
355ml = 0.355L
8mm = 0.8cm
6.3cm = 63mm
5.6m = 560cm
26000cm = 260m
56500mm = 0.0565km
27.5mg = 0.0275g
923cm = 9.23m
0.025km = 2500cm
First Column
1. 1000mg = 1g
2. 160cm = 1600mm
3. 109g = 0.109kg
4. 250m = 0.25km
5. 14km = 14000m
6. 1L= 1000ml
7. 480cm = 4.8m
8. 27g = 0.027kg
Next column
9. 198g = 0.198kg
10. 75ml = 0.075L
11. 50cm = 0.5m
12. 5L = 5000mL
13. 16cm = 160mm
14. 65g = 65000mg
15. 2500m = 2.5km
16. 355ml = 0.355L
Last Column
17. 8mm = 0.8cm
18. 6.3cm = 63mm
19. 5.6m = 560cm
20. 26000cm = 260m
21. 56500mm = 0.0565km
22. 27.5mg = 0.0275g
23. 923cm = 9.23m
24. 0.025km = 2500cm
How does the distance traveled by the coin compare to its displacement after ten flips?
Answer:
To calculate displacement, simply draw a vector from your starting point to your final position and solve for the length of this line. If your starting and ending position are the same, like your circular 5K route, then your displacement is 0. In physics, displacement is represented by Δs.
Explanation:
hope helps
How far will Julie travel if she moves at a speed of 7 meters per second for 20 minutes?
Ice floats on water.
Answer:
Yeah ice floats on water.
Observation
Example in those areas were ice is found like Antarctica ice is found on top of water.
PLEASE HELP AM GIVING 20 POINTS A worker in a factory has discovered a material that is confusing. It can be stored in a container but can also flow from one container to another. It forms powder after some time. The worker is confused and does not know which state of matter it belongs. As a student of Physics, prepare a message that will help the worker in the factory to properly classify the substance in the right state of matter.
The factory worker need to know is the state of the material at room temperature and atmospheric pressure.
Matter is anything that has mass and occupy space. Everything around is composed of matter. The material can easily be classified by considering the state of matter in which the material is found at room temperature and atmospheric pressure.
Hence, all the factory worker need to know is the state of the material at room temperature and atmospheric pressure. This will tell us whether it is a liquid, solid or gas.
Learn more about states of matter: https://brainly.com/question/9402776
Applying the speed of Sound
Johnny was playing baseball with his friends and they noticed a bolt of lightning They heard thunder seven seconds
How far away is the storm?
meters
Answer:
2,317
Explanation:
on e
Lara has four samples of substances:
Sample A: 5 g of salt
Sample B: 8 g of sand
Sample C: 8 g of sugar
Sample D: 5 g of sugar
Which of the following samples have the same solubility in water?
Sample A and Sample C
Sample A and Sample D
Sample C and Sample B
Sample C and Sample D
Answer:
A and C, A and D, C and D
Explanation:
they are soluble in water
A baseball is thrown a distance of 20 meters. What is its
seconds to cover the distance?
speed if it takes 0.5
Answer:
I want to say 10 seconds but im not 1000% sure
Answer:
Average speed= distance traveled/ time taken.
Explanation:
You shouldn't need any formula, just use common sense. You dummy. It goes 20m 10h half a sec. DUH!!!
