Derive the following relation/equation.
i.S=ut+1/2at²
Answer:
I hope it was helpful.........
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.
What does the term "heat capacity" refer to? Question 2 options: The amount of heat energy needed to raise the temperature of a unit mass of a material one degree A ratio of the amount of heat a material will absorb to the amount of heat it immediately releases The amount of heat that must be applied to a solid to convert it to a liquid The amount of heat that a liquid can absorb until the particles speed up enough to become a gas
Answer:
Heat capacity is the ratio of the amount of heat energy transferred to an object to the resulting increase in its temperature. Molar heat capacity is a measure of the amount of heat necessary to raise the temperature of one mole of a pure substance by one degree K.
Explanation:
hope this helps <3
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..
A student conducts an experiment to test how the temperature affects the amount of sugar that can dissolve in water. In the experiment, she uses 100 milliliters of water in each trial and stirs for five minutes each time.
What is the independent variable in this experiment?
A. the amount of water
B. the temperature of the water
C. the amount of sugar
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:
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.
Does a fan that is not spinning have energy?
Answer:
Yes, when dealing with electricity as long as there is an input source there is always built up energy waiting to be used also known as kinetic energy. The fan is not spinning but if it were turned on it would spin instantaneously.
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.
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What are the 5 advantages of NSC
Answer:
Tax saver: As a government-backed tax-saving scheme, the principal invested in NSC qualifies for tax savings under under Section 80C of the Income Tax Act up to Rs. 1.5 lakhs annually.
Investment Flexibility : You can invest as small as Rs. 100 as an initial investment with no maximum limit.
Hanging from a tree branch is doing work?
Explanation:
The branch is possessing gravitational potential energy.
2. Another car weighs 2000kg, you can push it .05 m/s?, how much force are you
applying to the car? Again use F=MA.
Answer:
[tex]\boxed {\boxed {\sf 100 \ Newtons}}[/tex]
Explanation:
We are asked to calculate the force you are applying to a car. According to Newton's Second Law of Motion, force is the product of mass and acceleration. Therefore, we can use the following formula to calculate force.
[tex]F= m \times a[/tex]
The mass of the car is 2000 kilograms and the acceleration is 0.5 meters per second squared.
m= 2000 kg a= 0.05 m/s²Substitute the values into the formula.
[tex]F= 2000 \ kg \times 0.05 \ m/s^2[/tex]
Multiply.
[tex]F= 100 \ kg *m/s^2[/tex]
Convert the units. 1 kilogram meter per second squared is equal to 1 Newton. Our answer of 100 kilogram meters per second square is equal to 100 Newtons.
[tex]F= 100 \ N[/tex]
You apply 100 Newtons of force to the car.
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
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
A student walks to the right, 25-m along the C Hall in 15-s. They turn around and walk 15-m to the left in 8.0-s. What is the average speed and the average velocity? (V represents average speed and ΔV represents average velocity)
For the student that walks to the right 25 m in 15 s and then turns and walks to the left 15 m in 8.0 s, we have:
1. The average speed is 1.74 m.
2. The average velocity is 1.42 m.
1. The average speed is an scalar wich is given by:
[tex] V = \frac{d_{t}}{t_{t}} [/tex]
Where:
[tex]d_{t}[/tex]: is the total distance
[tex]t_{t}[/tex]: is the total time
The total distance and the total time can be calculated as follows:
[tex]d_{t} = d_{1} + d_{2} = 25 m + 15 m = 40 m [/tex]
[tex] t_{t} = t_{1} + t_{2} = 15 s + 8.0 s = 23 s [/tex]
Since V is a scalar, the direction of motion is not important to calculate the final value.
Then, the average speed is:
[tex] V = \frac{d_{t}}{t_{t}} =\frac{40 m}{23 s} = 1.74 m/s [/tex]
2. The average velocity is a vector, so the direction of motion is important here. This ΔV can be calculated with the following equation:
[tex] \Delta V = \frac{\Delta x}{\Delta t} = \frac{x_{f} - x_{i}}{t_{f} - t_{i}} [/tex]
Where:
x: is the displacement
f: is for final and i: is for initial
Hence, the average velocity is:
[tex] \Delta V = \frac{x_{f} - x_{i}}{t_{f} - t_{i}} = \frac{15 m - 25 m}{8.0 s - 15 s} = 1.42 m/s [/tex]
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explain the various aspects of few medical based profession
Answer:
doctor,health assistant , dentist, psychotherapist , nurse ,etc
Define energy
define phisical quentity
Answer:
1.Energy is a quantity that is transferred from system to system. Energy is the ability of a system to do work. A system has done work if it has exerted a force on another system over some distance. When this happens, energy is transferred from one system to another.
2.physical quantity is a property of a material or system that can be quantified by measurement. A physical quantity can be expressed as a value, which is the algebraic multiplication of a numerical value and a unit. ... One is numerical magnitude and the other is the unit in which it is measured.
what is the unit of work ?
Answer:
a joule is the unit of work
Explanation:
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).
please someone derive 3rd equation of motion u- v= 2sa
We know
[tex]\\ \sf\longmapsto a=\dfrac{dv}{dt}[/tex]
[tex]\\ \sf\longmapsto a=\dfrac{dv}{dx}.\dfrac{dx}{dt}[/tex]
[tex]\\ \sf\longmapsto a=v\dfrac{dv}{dx}[/tex]
[tex]\\ \sf\longmapsto adx=vdv[/tex]
Integrate[tex]\\ \sf\longmapsto a{\displaystyle{\int}^x_{x_0}}dx=\displaystyle{\int}_u^v vdv[/tex]
[tex]\\ \sf\longmapsto a(x-x_0)=\dfrac{v^2-u^2}{2}[/tex]
Here
x-x_0=s[tex]\\ \sf\longmapsto v^2-u^2=2as[/tex]
How many milliliters are in 1 liter?
Answer:
1000 millilitres
Explanation:
hope it helps u !!
7. MANSON'S FAVORITE SINGING GROUP WAS...
O THE TEMPTATIONS
O THE BEACH BOYS
O THE ROLLING STONES
O THE BEATLES
convert 22000mg to cg
Your answer is.. 22000 mg = 2200 cg
Because:
1 mg = 0.1 cg
I hope this helps!
The speed of an object undergoing constant acceleration increases from 8.0 meters per second to 16.0 meters per second in 10. seconds. How far does the object travel during the 10. seconds?
Answer:
[tex] \boxed{d = 120\: meters} [/tex]
Explanation:
Given:
[tex] v_{0} [/tex] = 8.0 m/s[tex] v [/tex] = 16.0 m/s[tex] t [/tex] = 10 seconds[tex] d [/tex] = ?We can use this equation with the variables given to solve:
[tex] d \: = \frac{t \: (v + v_{0})}{2}[/tex] →
[tex] d \: = \frac{(10s) \: ((16.0 \: m/s) + (8.0 \: m/s))}{2} [/tex] →
[tex] d \: = \frac{(10s) \: (24 \: m/s)}{2} [/tex] →
[tex] d \: = \frac{(10 \: s \: • \: 24 \: m/s)}{2} [/tex] →
[tex] d \: = \frac{240 \: m}{2} [/tex] →
[tex] d \: = 120 \: m [/tex]
The distance traveled by the object in 10 seconds is 120 meters.
Given to us,
Final velocity of the object, [tex]v= 16\ meter/sec[/tex]
Initial velocity of the object, [tex]u= 8\ meter/sec[/tex]
Time for traveling, [tex]t= 10\ sec[/tex]
Using the first equation of motion, we can find out acceleration of the object [tex]a[/tex],
[tex]v=u+at\\16=8+a\times 10\\a= 0.8\ meter/sec^2[/tex]
Now using the second equation of motion and putting the value of [tex]a[/tex],
The distance[tex](S)[/tex] traveled by the object ,
[tex]\begin{aligned}S&= ut+\frac{1}{2}at^2\\&= 8\times 10+ \frac{1}{2}\times 0.8\times 10^2\\&= 120\ meters \\\end{aligned}[/tex]
Hence,The distance traveled by the object in 10 seconds is 120 meters.
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what is the nature of a machine having more power
can do a lot of work
can do a small work
can work fast
works slowly
choose from the option
the nature of a machine having more power can work fast
(4) A roller coaster is at the top of a 72 m hill and has a mass of 700 kg. The coaster this moment) has energy. Calculate it.
Answer:
here
Explanation:
Answer:
493,420 Joules
Explanation:
Potential energy of the roller coaster
PE = mgh
Where
m = mass (kg)
g = gravitation (9.8 m/s²)
h = height
PE = 72 x 700 x 9.8 (in some cases 10)
PE = 493,420 J
If g = 10
PE = 504,000 J
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
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Benjamina 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.
1. °C= (°F-32) X 5/9. what will be the answer?
2. °F= 9/5 (°C)+32
3. °K= °C+273
4. D= m/V
Answer:
F=9/5(°C)+32
Explanation:
Let's take an example
Take 100°C.[tex]\\ \sf\longmapsto \dfrac{9}{5}(100)+32[/tex]
[tex]\\ \sf\longmapsto 9(20)+32[/tex]
[tex]\\ \sf\longmapsto 180+32[/tex]
[tex]\\ \sf\longmapsto 212°F[/tex]
Suzy drives 10 miles north then drives 24 miles west. What is her total distance traveled?
Answer:
34
Explanation:
