How do you find the uncertainty of a meter stick?
Thus, L =5 . 7 cm measured with a meter stick implies an uncertainty of 0.05 cm. A common rule of thumb is to take one-half the unit of the last decimal place in a measurement to obtain the uncertainty
Derive the following relation/equation.
i.S=ut+1/2at²
Answer:
I hope it was helpful.........
Which of the following is not considered a natural science?
A. chemistry
B. psychology
C. biology
D. physics
Please select the best answer from the choices provided
Ο Α
OB
Ο Ο Ο Ο.
ОС
D
Answer:
B. Psycology
Psycology is considered a social science while all the other choices are natural sciences.
Psychology is not considered a natural science. While it deals with the study of the human mind and behavior, psychology is generally classified as a social science rather than a natural science.
What are natural sciences?Natural science is a branch of science that deals with the study of the natural world, including the physical, chemical, and biological aspects of nature. It is a systematic and empirical approach to understanding the natural phenomena that occur in the universe. Natural sciences include subjects such as physics, chemistry, biology, geology, and astronomy, among others.
These sciences use the scientific method to investigate and explain the behavior of the natural world, relying on observation, experimentation, and analysis of data to formulate theories and laws that can explain natural phenomena. Natural science plays a critical role in our understanding of the universe and has contributed immensely to technological advancements in various fields. Therefore, option (B) is correct.
Learn more about natural science, here:
https://brainly.com/question/242581
#SPJ7
A helicopter flies 25 km north, 5 km east, then 5 km S, then 15 km W. What is the resultant displacement and direction of the helicopter? Solve using graphical or mathematical methods. Be sure to either show work or explain your graphical methods.
Answer:
Explanation:
Plotting the original location of the helicopter before it flies 25 km north, it would be at the origin, (0,0) then after it flies north, the y vertex gains 25 points, so it would be (0,25)
After it flies east, the x coordinate gains 5 points, so it would now be (5,25)
After it flies south, the y coordinate loses or is subtracted by 5 points. so it would now be (5,20)
After flying west, the x coordinate loses 15 points. So the final vertex would be at (-10,20)
East = Right
West = Left
South= Down
North = Up
I used mainly mathematical methods by adding and subtracting the x and y coordinate values, but this could be graphed easily since I gave the coordinates just incase!
Hope this helps!
Answer:
Explanation:
D = Xf - X
D = 15km West - 25km North
D = -10km West
In Hindu chronology, the longest time measure is a para. One para equals 311 040 000 000 000 years. Calculate this value in megayears, hours and in seconds. Write your answers in scientific notation.
A para equals [tex]3.110\times 10^{8}[/tex] megayears, [tex]2.725\times 10^{18}[/tex] hours and [tex]9.809\times 10^{21}[/tex] seconds, respectively.
This is an unit conversion problem, in this question we need to convert a value in Hindu units into SI units. A megayear equals [tex]10^{6}[/tex] years, a year equals 8760 hours and a hour equals 3600 seconds. Now we proceed to perform all required conversions:
Megayears
[tex]x = 1\,para \times \frac{311040000000000\,yr}{1\,para} \times \frac{1\,Myr}{10^{6}\,yr}[/tex]
[tex]x = 311040000\,Myr[/tex]
[tex]x = 3.110\times 10^{8}\,Myr[/tex]
Hours
[tex]x = 1\,para \times \frac{311040000000000\,yr}{1\,para} \times \frac{8760\,h}{1\,yr}[/tex]
[tex]x = 2.725\times 10^{18}\,h[/tex]
Seconds
[tex]x = 1\,para \times \frac{311040000000000\,yr}{1\,para} \times \frac{8760\,h}{1\,yr} \times \frac{3600\,s}{1\,h}[/tex]
[tex]x = 9.809\times 10^{21}\,s[/tex]
A para equals [tex]3.110\times 10^{8}[/tex] megayears, [tex]2.725\times 10^{18}[/tex] hours and [tex]9.809\times 10^{21}[/tex] seconds, respectively.
We kindly invite you to check this question related to unit conversions: https://brainly.com/question/12503100
Q- Do car brakes work as well in the wet?
they work less effectively due to the lack of friction on the road when it is wet
pls mark brainliest
Answer: Not really
Explanation: When it's wet, and you slam on the brakes, there's not enough friction with the ground for it to not go spiraling out of control.
convert 22000mg to cg
Your answer is.. 22000 mg = 2200 cg
Because:
1 mg = 0.1 cg
I hope this helps!
11.
2.4 g/mL x 15.82 mL
Answer:
The final solution is 38 g.
Explanation:
(2.4 (g / mL)) x 15.82 mL
= 37.96800 grams
When rounded, we get 38, so 38 g is the final solution.
Answer:
38 g is the answer
A bowling lane is 18 meters long. How long would it take a 1.5 m/s bowling ball to
roll down that lane?
16.5 seconds
16.5 meters
12 seconds
27 seconds
27 meters
12 meters
Divide distance by speed:
18 meters / 1.5 meters/ second = 12 seconds
Answer: 12 seconds
A bowling lane is 18 meters long. it would take 12 seconds for a 1.5 m/s bowling ball to roll down that lane, therefore the correct answer is the third option
What is Velocity?The total displacement covered by any object per unit of time is known as velocity. It depends on the magnitude as well as the direction of the moving object.
The mathematical expression for velocity is given by
velocity= total displacement/Total time
As given in the problem a bowling lane is 18 meters long and the ball is moving with a velocity of 1.5 m/s in the roll-down lane we have to find the time period for the bowling ball to roll down that lane
Total displacement = 18 meters
the velocity of the ball = 1.5 m/s
time =?
By substituting the values in the formula of the velocity
1.5 = 18/t
t= 12 seconds
Thus , it would take 12 seconds for a 1.5 m/s bowling ball to roll down that lane
Learn more about Velocity from here
brainly.com/question/18084516
#SPJ2
Write electronic configuration of calcium on the basis of sub shell?
Answer:
Use Aufbau's principle,
1s^2,2s^2,2p^6,3s^2,3p^6,4s^2
Fill 20 electrons,
Max number of electrons that sub shells can hold,
s=2
p=6
d=10
f=14
4 facts about relative dating?
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.Complete the passage to describe velocity vs time graphs.
A velocity vs time graph is a graph that shows the relationship between the velocity of an object over time.
is plotted on the x-axis in seconds, and the
of the object is plotted on the y-axis in
meters per second.
Intro
ty
Done
Answer:
Explanation:
velocity unit t is m/s and the slope indicates the acceleration
Answer: time and volocity
Explanation:
In vector diagrams, what does the length of the arrow tell you?
Answer:
The length of the arrow tells you the size of the quantity in the vector diagram.
The direction of the arrow simply tells you the direction
Answer and Explanation:
A vector in this sense is a thing that has both magnitude (length) and direction.
Say you're walking at a speed of 5 miles per hour. If you keep walking in a straight line, then in two hours you will have walked 10 miles.
This doesn't give any information about where you started or any information about where you ended up after those 2 hours.
This is because "speed" is a scalar. It's a number with no associated geometry. It's just a magnitude. It's the magnitude of velocity.
Velocity is a vector.
Look on a map at where you are right now. Call that the center of the circle. Draw the circle with a 10 mile radius around where you are now.
The length of the arrow represents all of the possible places you could be after a two hour walk.
Which direction the arrow was pointing is what allows your friends to meet you there without checking along a ~63 mile path to find you or searching ~314 square miles to find you if you slowed down or stopped off along the way.
The equation below can be used to find the specific heat capacity of a substance. What is the specific heat capacity if it takes 1000 J of energy to heat 25 g of this substance by 100°C? Give your answer in J/kg°C.
Answer:
0.4j/g
Explanation:
using H = MCQwhere H is heat energy, M is mass of substance, and Q temperature change
1000= 25*C*1001000=25*100*C1000=2500Cdivide both by 25001000/2500=CC = 0.4j/gAnswer:
u837483 hd83v
Explanation:
ueu383hevd8eb2 e eusb2 3udbr easy elements easy when ever ever ekq Asner skate s Jesse issbqks. sis whish
What’s important about physical health
Answer:
Physical activity or exercise can improve your health and reduce the risk of developing several diseases like type 2 diabetes, cancer and cardiovascular disease. Physical activity and exercise can have immediate and long-term health benefits. Most importantly, regular activity can improve your quality of life.
Explanation:
hope it is helpful for you keep smilingBenjamina started her walk from the front door of her ground-floor apartment. She walked 6 meters to the corner of the building and then turned the corner and walked 10 meters to her friend’s apartment. Identify the difference between the distance she walked and her displacement.
Answer:
The change in her position (from beginning to end), along with the direction, is considered her displacement.
Explanation:
Answer:
The change in her position ( from beginning to end), along with the direction, is considered her displacement. This value is a measurement and a direction. The total distance along the path from her starting point to her endpoint is considered her distance. This value is a measurement only.
An alternating voltage of 25.0 V is connected across the primary coil of a transformer.
Input Voltage 25 V
ind Output Voltage
50 V Output Current
Input Current 5 A
What is the current across the secondary coil? A 2.5 A C 250 A B D 5.0 A 500 A
Answer:
A
Explanation:
Wattage = E * I
E = 25
I = 5
Wattage = 25 * 5
Wattage = 125
The secondary, in an ideal transformer has the same wattage.
125 = 50 * I Divide by 50
125/50 = I
I = 2.5
A geologist was digging through Earth's surface and found deep in the earth's crust a rock that has flattened layers with a fossil imprinted in the rock. Choose the best scenario that lead to the formation of this rock.
Answer:
Please give options
Explanation:
mark me as brainlist
What are the two main
categories of particles and
antiparticles?
Answer:
Particles can be classified as hadrons – baryons and mesons – and leptons, each with its anti-particle, and they should know that interactions between these particles can be described in terms of transfer of other particles known as vector bosons.
Explanation:
Your Welcome, if you could give me Brainlist I would appreciate it!
What is the difference between the temperatures on Earth and the moon?
Answer:
The earth is hotter
Explanation:
the average temperature on earth is 57 degrees Fahrenheit the average on the moon is -298 degrees Fahrenheit
7. MANSON'S FAVORITE SINGING GROUP WAS...
O THE TEMPTATIONS
O THE BEACH BOYS
O THE ROLLING STONES
O THE BEATLES
A liquid has a
constant temperature
definite shape
crystal structure
definite volume
The right answer is : Definite Volume
You must be the change you wish to see in the world
If a car's initial velocity is 24 m/s E, and 3 seconds later the car's
velocity is 12 m/s E, what is the acceleration of the car during those
3 seconds?
Please find the attached photo for your answer. Hope it helps..
Engineers design a system for heating the air in a house. They want the
heater to bring the temperature to a comfortable level and then maintain it.
Which option describes how the engineers should design the system?
O A. Include a control in the system that minimizes the difference
between the amounts of input and output.
B. Build in a control that uses negative feedback to minimize the
amount of change in the system.
C. Build a control into the system that causes input to always be
slightly less than output.
D. Include a control in the system that provides positive feedback
between the input and the output.
SUBMIT
what is force? Give it's SI unit
Answer:
Force is an external agency that changes or tries to change the position of the body.
Its SI unit is Newton (N).
¿Qué información se puede obtener de un gráfico rapidez versus tiempo?
Answer:
la velocidad se mide con el tiempo del tiempo que tarda el tiempo se mide por la hora del día y el reloj
Explanation:
Creo que es correcto
Explain why circular motion includes continuous
acceleration even when the speed does not change
A basket contains 7 white cats and 15 black cats. What is the ratio of the number of white cats to the number of black cats?
convert 260 f into c
Answer:
126.667 °Celsius
Explanation:
260 °Fahrenheit =126.667 °Celsius
Which of the following is true about galaxies?
a. Galaxies are moving away from each other.
b. Galaxies are moving toward each other.
c. Galaxies move in a random pattern.
d. Galaxies are stationary.
Answer:
a
Explanation:
i remeber learing this
hope this helps
branliest plzz
