Answer:
Initial velocity, U = 28.73m/s
Explanation:
Given the following data;
Final velocity, V = 35m/s
Acceleration, a = 5m/s²
Distance, S = 40m
To find the initial velocity (U), we would use the third equation of motion.
V² = U² + 2aS
Where;
V represents the final velocity measured in meter per seconds.
U represents the initial velocity measured in meter per seconds.
a represents acceleration measured in meters per seconds square.
S represents the displacement measured in meters.
Substituting into the equation, we have;
35² = U + 2*5*40
1225 = U² + 400
U² = 1225 - 400
U² = 825
Taking the square root of both sides, we have;
Initial velocity, U = 28.73m/s
True or False
Chemical reactions in batteries produce a voltage difference between the positive
and negative terminals.
Answer:
true
Explanatiohope this helps
What type of electromagnetic radiation is used by mobile phones?
Cell phones emit radiofrequency radiation ( radio waves ), a form of non-ionizing radiation, from their antennas
Brainiest if correct? I'd appreciate it SM :D
Answer:
radio frequency (RF)
The type of radiation emitted by cell phones is also referred to as radio frequency (RF) energy
Explanation:
hope this helps have a good rest of your night :) ❤
Help me pleaseeeeee due. Today
Answer:
1. geothermal
2. nuclear
3. biofuel
True or False? Convection in the inner core causes the solid layers like the lithosphere to move and cause earthquakes
Answer:
True
Explanation:
Hope it help
Mark me as brainliest
Answer:
True
Explanation:
!mark me as brainliest
Help with this question please :>
Answer: A if thats not right its C
Explanation:
Answer: It's c
Explanation: C
20. The triple-point of water occurs at 273.16 K (0.01 °C) and a vapor pressure of 0.0060373 atm). At this point water can be ______________. solid B. Liquid C. Gas D. All of the above E. None of the above
Answer:
E i think.
Explanation:
The triple-point of water occurs at 273.16 K (0.01 °C) and a vapor pressure of 0.0060373 atm. At this point water can be solid, liquid and gas. So, option (D) is correct.
What is phase diagram?phase diagram: a graph that displays the limiting conditions for a substance's solid, liquid, and gaseous phases under changes in pressure, temperature, or another combination of variables, such as solubility and temperature.
The curves in the figure were derived from measurements taken at various pressures and temperatures, and they represent a typical phase diagram for a one-component system (i.e., one made up of a single pure chemical).
What is triple-point?The combination of temperature and pressure at which a substance can exist in all three of its states—gas, liquid, and solid—is known as the triple point.
The Kelvin(K), the International System of Units' (SI) fundamental unit of thermodynamic temperature, is defined using the triple point of water. The triple-point of water occurs at 273.16 K (0.01 °C) and a vapor pressure of 0.0060373 atm.
Learn more about triple point here:
https://brainly.com/question/2402164
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A stone is thrown upwards from the edge of a cliff with a speed of 5.0 ms. It hits the
ground 2.0 s later. What is the height of the cliff?
If you can provide some explanation I will greatly appreciate it.
Answer:
3.0 would be it
Explanation:
Because if you think bout it the 5.0 negative 2.0 is 3.0
Which layer in the image above represents the layer of the Earth composed of liquid metal? *
Answer:
4
Explanation:
what is the average acceleration of a car if a car rest from 0m/s and reaches a final velocity is 50m/s in 10m/s
Answer:
Assuming that you meant the final velocity of 50 m/s was reached in 10 s, the answer would be 5 m/s^2.
Explanation:
[tex]V_{f} = V_{i} + at[/tex]
So we update that with the values that we have.
[tex]50 = 0 +a(10)[/tex]
then simplify that using algebra to solve for a and we get 5 m/s^2
Oh no! The Hulk just fell off the Empire State Building! Calculate how long it took him to fall straight down from the top of the Empire State Building, which is 380 m high.
If you can provide some, explanation I will greatly appreciate it.
Answer:
8.803 s
(but this is only if it's a free fall, which we assume since we didn't get the mass of the hulk)
force of 7 N acts on an object.
The displacement is, say 8 m, in
the direction of the force
(Fig. 11.3). Let us take it that the
force acts on the object through
the displacement. What is the
work done in this case?
Explanation:
Given
Force (F) = 7 N
Displacement (d) = 8 m
work done (W) = ?
We know that
W = F * d
= 7 * 8
= 56 J
The work done in this case is 56 Joule.
Frying an egg conduction convention radiation
Answer:
frying an egg is conduction because the pan is touching the stove and the pan is touching the eggs
Explanation:
What does AS>0 mean?|
I
Answer:
Significant Other
Explanation:
that comes to mind when I see that
Which model shows how a comet's tail changes during its orbit?
Third model shows how a comet's tail changes during its orbit...
mark brainliest
A 0.20 kg baseball is traveling at 40 m/s toward the batter. The ball is hit by the bat with a force of 200N, and is
now headed toward the pitcher at 25 m/s. How long was the bat in contact with the ball?
Answer:
Time, t = 0.015 seconds.
Explanation:
Given the following data;
Mass, m = 0.2kg
Force, F = 200N
Initial velocity, u = 40m/s
Final velocity, v = 25m/s
To find the time;
Ft = m(v - u)
Time, t = m(v - u)/f
Substituting into the equation, we have;
Time, t = 0.2(25 - 40)/200
Time, t = 0.2(-15)/200
Time, t = 3/200
Time, t = 0.015 seconds.
Note: We ignored the negative sign because time can't be negative.
What happens to the number of daylight hours as Earth moves in its orbit from winter to spring?
Answer:
The earth is exposed much more during the summer the hours of daylight is increased slightly
Explanation:
which pair of chromosomes is the s3x chromosomes? Why?
Autosomes are homologous chromosomes i.e. chromosomes which contain the same genes (regions of DNA) in the same order along their chromosomal arms. The chromosomes of the 23rd pair are called allosomes consisting of two X chromosomes in most females, and an X chromosome and a Y chromosome in most males.
this is due in 10 mins help me plssssss
Answer:
hydroelectric power
Milk being heated on top of a stove will do what?
Group of answer choices
Expand
Contract
Stay the same
Some one plz help me and I will give you brainliest plz
The two properties that are
parts of refraction are ...
Answer:
-Relative refractive index– It is the ratio of speed of light in one medium to the speed of light in another medium
-Absolute refractive index– It is the ratio of light in vacuum to the speed of light in another medium.
Explanation:
A driver pushes on a car with a force of 8000 N for 15 seconds but is unable to move it. How much work is done
Answer:
the work done is zero.
Explanation:
Given;
applied force, F = 8000 N
time of force application, t = 15 s
Work done is given as the product of force and displacement. Since the car is unable to move, then the displacement is zero and the work done is zero.
Work done = Force x displacement
Work done = 8000 N x 0
Work done = 0
Therefore, the work done is zero.
30 points!!
Electricity seems like a fundamental element in the construction of any home. However, to have electricity run into and out of a home, there must be a complete circuit. Write a brlef essay describing the minimum requirements for any electric circuit. Within your essay, describe the task for each of these elements using your lessons and experience
within this virtual lab.
At least 150 words needed.
•Most of the components that make up curcuits are conductors. Electricity flows easily thought conductors such as metal or water.Electricity does not flow easily thought insulators such as wood or rubber.
•When a battery is used to power a circuit, the circuit the current must travel from one pole of the battery to the opposite battery.
•Resisotors show the flow of Electricity throught a circuit this can prevent components of the circuit from 'brning out'. In a curcuit diagram, resistors are represented by bending lines.
Two magnets are held apart. Once released, the South Pole of one magnet moves toward the North Pole of another magnet until the magnets collide. How does the graph reflect the changes in energy that occur?
Answer:
Kinetic energy and velocity are at zero when the magnets are held apart, and both increase rapidly when they are released and move together. Energy stored in the magnetic field decreases.
Explanation:
easy
The increase in the kinetic energy occurs when both magnets are released.
Change in energy occurs between two magnets
The kinetic energy and velocity are at zero when the magnets are held apart from one another at a certain distance but the kinetic energy increases when they are released and move together so we can conclude that the increase in the kinetic energy occurs when both magnets are released.
Learn more about magnets here: https://brainly.com/question/14997726
Ill mark the brainliest pls lmk what answer ty
2800 m
Further explanationGiven
time = 80 s
average velocity = 35 m/s
Required
total distance before it broke down
Solution
Average velocity : total displacement : total time
Can be formulated
avg velocity = Δx : Δt
Input the value :
Δx=avg velocity x Δt
Δx = 35 m/s x 80 s
Δx = 2800 m
In addition, if we are asking for velocity, we must know the starting and ending points (displacement)
But if we calculate the total distance, what is written is the average speed
avg speed = total distance : total time
PLEASE PLEASE HELPPPPPP!!!!!!!’
Which features do sound waves have that ocean and light waves do not? Check all that apply.
compression
rarefaction
amplitude
wavelength
crests
frequency
speed
Answer:
frequency
Explanation:
Answer:
compressions and rarefactions
Explanation:
edge 2022
13. Harry used the energy stored in his muscles to cycle up a hill. What happened to this energy when he reached the top?
A. The energy stored in Harry's musclesbwas destroyed.
B. The energy was returned to Harry's muscles
C. Kinetic energy changed to potential energy.
D. Potential energy changed to kinetic energy.
Answer:
C. Kinetic energy changed to potential energy.
Explanation:
The kinetic energy is converted to potential energy when he reaches the top of the hill.
As with every system, energy is neither created nor destroyed but transformed from one form to another.
This is from the law of conservation of energy.
Kinetic energy is produced when Harry moves the up the hill. As he reaches the top of the hill and comes to rest, potential energy is formed.
Potential energy is the energy due to the position of a body.
Hi!! Please Answer this question, & it would be AWESOME, LIKE REALLLYY AWESOME If you could send me a picture with the graph! (You'll get 85 Points, Thats a lot too!)
I realllyy need help with this, I don't know how to draw it! Please help me, If you do, I'll be sure to give you prayers for the good help you gave me, & Pay you back in return! you'll be a livesaver if you send me a picture! :)
Answer:
Is there a map of the town? It doesn't make sense without coridnates or street lengths. If it was a straight isosilese triangles the return time is 3:36pm. This answer doesn't make sense if there is a map.
Explanation:
Side a is 12km Side b 15 km Side c 19.21 km.
9am depearture
11am 12km away rest
11:30am starts at 10 km/h
1:00 pm reaches town
2:00pm done lunch
3:36 pm return home.
PLEASE HELP ASAP! i will really appreciate it
