The diagram below shows an electric circuit with a battery and a bulb.
What energy transformations would occur when the bulb lights?
B. chemical to electrical to light
C. electrical to mechanical to light
D. chemical to electrical to solar
A. light to electrical to chemical
(First answer gets brainliest)
Answers
Answer:
B. chemical to electrical to light
The battery holds chemical energy, which is transformed to electrical energy due to flow of electrons.
The electrons due to their drift velocity which heats up the bulb filament hence producing light.
Answer:
B
Explanation:
because i learned in 5th grade
Related Questions
Susan makes the following entry in her notebook: “On Friday we were given a blue liquid in a shallow container. We placed it on the windowsill over the weekend. On Monday morning, there was no liquid left, but the dish had some solid blue stuff in it.”
a. Was the blue liquid in the dish a heterogenous mixture, a solution, or a pure substance? Explain your choice.
b. Write a few sentences about what you think happened in the dish.
Answers
Answer:
Explanation:
a. From the information provided in the question, the blue liquid is a solution. This is because a solution is a type of homogeneous mixture (that has an evenly distributed solute in a solvent) which is the reason the liquid was said to be blue (and not immiscible blue solid in a liquid) but after been exposed to heat became just a blue solid. Typically, a solution has a solute and a solvent (combined), the solute here is the blue solid while the solvent is the liquid that made the combination a liquid.
b. Since the dish containing the liquid was placed on a windowsill, it can be assumed that the dish was subjected to heat from the sun which caused the liquid (in the solution) to evaporate after exposure to the heat from the sun (over the weekend) leaving the blue solid solute (of the solution) to remain in the dish. This can be referred to as evaporation to dryness in separation techniques (if the goal was to intentionally separate the solid solute from the liquid solvent).
What will most likely happen ifa light wave moves through a solid?
O It will increase in wavelength.
O It will decrease in speed.
O It will increase in speed.
O It will decrease in wavelength.
Answers
How are mass and volume alike?
They always stay the same
They are both measured in grams
The cease to exist when placed in a liquid
Answers
Answer:
its b
Explanation:
b
TRUE OR FALSE: some rays of light carry radiation.
Answers
Answer:
true
Explanation:
Answer:
True
Explanation:
What is the difference between professional and casual communication styles?
Answers
Answer:
professional communication style is expected to be formal while the casual is informal.
Explanation:
is cereal a soup? explain why or why not
Answers
Answer:
no
Explanation:
because its cold
soup is hot
how much power is used to move a 25 kg mass 8 meters in 15 seconds?
Answers
Answer:
Concept: Physics
Power is related to Work which we will find below[tex]work = f \times d[/tex]Note that force is a vector quantity that has magnitude and direction We have a mass of 25 kg and we want to know the force it exerts by newton's first law: 25 × 9.81 m/s^2 = 245 N Now we have our force and d 245 × 8 meters= 1960 J Power is represented in joules The equation for Power is [tex]p = \frac{w}{t} [/tex]Hence [tex] \frac{1960}{10} [/tex]So we get that P= 196 WPlease Help Me!!!!!!
Answers
Answer:
..
Charcoal is flammable.
2. Two projectiles thrown from the same point at angles 0,=60° and 02=30° with the horizontal,
attain the same height. What is the ratio of their initial velocities (Voi:Voz)?
Answers
Answer:
The answer is below
Explanation:
The maximum height (h) of a projectile with an initial velocity of u, acceleration due to gravity g and at an angle θ with the horizontal is given as:
[tex]h=\frac{u^2sin^2\theta}{2g}[/tex]
Given that the two projectile has the same height.
[tex]For\ the\ first\ projectile\ with\ an\ angle\ \60^0 \ with\ the\ horizontal\ and initial\ velocity\ u_1:\\\\h=\frac{u_1^2sin^260}{2g} =\frac{0.75u_1^2}{2g} \\\\For\ the\ second\ projectile\ with\ an\ angle\ \30 \ with\ the\ horizontal\ and initial\ velocity\ u_2:\\\\h=\frac{u_2^2sin^230}{2g} =\frac{0.25u_2^2}{2g}\\\\\frac{0.25u_2^2}{2g}=\frac{0.75u_1^2}{2g}\\\\0.25u_2^2=0.75u_1^2\\\\\frac{u_1^2}{u_2^2} =\frac{0.25}{0.75} \\\\\frac{u_1^2}{u_2^2}=\frac{1}{3} \\[/tex][tex]\\\frac{u_1}{u_2}=\sqrt\frac{1}{3}[/tex]
HELPPP!! WHAT TWO THINGS WOULD HAVE THE SAME POTENTIAL ENERGY?? PLS HELP
Answers
Answer:
The amount of gravitational potential energy an object has depends on its height and mass. The heavier the object and the higher it is above the ground, the more gravitational potential energy it holds. Gravitational potential energy increases as weight and height increases.
Answer:
A rock and a drilled nail
Explanation:
Both objects are not moving potential energy means no movement no energy and both objects never move
Which observation supports a model of the nature of light in which light acts as a wave?
A. Constructive interference
B. Temperature change
C. Blackbody radiation
D. Photoelectric effect
Answers
Answer:
Explanation:
Hope this helps!
Answer:
a. constructive interference
Explanation:
100% correct
Pleaaaase help meeee
Read the following case and discuss how you would respond to the situation.
PROBLEM:
You have been assigned the position of Environmental Engineer for one of several local
robotics manufacturers whose water discharges flow into a lake in a flourishing tourist area.
Although all the robotics companies in the area are marginally profitable, they compete for
the same customers. Included in your responsibilities is the monitoring of water and air
discharges
at your plant and the periodic preparation of reports to be submitted to the Department of
Natural Resources. You have just prepared a report that indicates that the
level of pollution in the plant's water discharges slightly exceeds the legal limitations. Your
boss, the Plant Manager, says you should regard the excess as a mere
"technicality," and he asks you to "adjust" the data so that the plant appears to be in
compliance. He says that the slight excess is not going to endanger human or fish
life any more than if the plant were in compliance. On the other hand, he says, solving the
problem would require a very heavy investment in new equipment. He
explains, "We can't afford new equipment. It might even cost a few jobs. It will set us
behind our competitors. Besides the bad publicity we'd get, it might scare off
some of the tourist industry, making it worse for everybody."
1) How do you think you should respond to your boss's request? Explain :
2) Define the problem :
3) what are the possible results of decision?
4) is there any information about the situation that is not obvious or available in the paragraph?
5) what are the ethical issues to consider in this situation
6) How did you decide to handle the situation what did you decide to do?
Answers
Answer:
3
Explanation:
An object of mass 2kg raised to a height 10m possess potential energy of 200J. What is the kinetic energy and potential energy at a height 4 metre?
Answers
Explanation:
[tex]{\bold{\sf{\underline{Understanding \: the \: concept}}}}[/tex]
✠ This question says that there is an object and its mass is 2 kg ; it's raised to a height 10 m and possess potential energy of 200 J. Now this question ask us to find the kinetic energy and the potential energy at a height 4 metre.
[tex]\bold{↬{ }}[/tex][tex]{\bold{\sf{\underline{Given \: that}}}}[/tex]
✰ Mass = 2 kilograms
✰ Raised height = 10 metres
✰ Posses potential energy = 200 Joules
[tex]\bold{↬{ }}[/tex][tex]{\bold{\sf{\underline{To \: find}}}}[/tex]
✰ Kinetic energy at a height 4 metre
✰ Potential energy at a height 4 metre
[tex]{\bold{\sf{\underline{Solution}}}}[/tex]
✰ Kinetic energy at a height 4 metre = 120 J
✰ Potential energy at a height 4 metre = 80 J
[tex]{\bold{\sf{\underline{Using \: concepts}}}}[/tex]
✰ Potential energy formula.
[tex]{\bold{\sf{\underline{Using \: formula}}}}[/tex]
✰ Potential energy = mgh
[tex]{\bold{\sf{\underline{We \: also \: write \: these \: as}}}}[/tex]
✰ Potential energy as P.E
✰ Mass as m
✰ Joules as J
✰ Height as h
✰ Raised height as g
[tex]{\bold{\sf{\underline{Full \: solution}}}}[/tex]
✠ Let us find the Potential energy.↦ Potential energy = mgh
↦ Potential energy = 2 × 10 × 4
↦ Potential energy = 20 × 4
↦ Potential energy = 80 J
✠ Now according to the question let us find the kinetic energy↦ Kinetic energy = Posses potential energy - Finded potential energy
↦ Kinetic energy = 200 J - 80 J
↦ Kinetic energy = 120 Joules
An object of mass 2kg raised to a height 10m possess potential energy of 200J.
to find:-What is the kinetic energy and potential energy at a height 4 metre?
solution:-from energy conservation,
potential energy at 10m height =potential energy +kinetic energy at 4 m
potential energy at 10 m height=200
let,Kinetic energy at 4m=KE
potential energy at 4m=PE
so,
200=KE+PEpotential energy at 4m height =
mgh2×10×480Hence,
kinetic energy at 4m is =200-80=120J
Are all forms of radiation safe for humans?
Answers
Answer:
there are not all safe for humans
What is the acceleration due to gravity near the earth’s surface?
Answers
Its value is 9.8 m/s2 on Earth. That is to say, the acceleration of gravity on the surface of the earth at sea level is 9.8 m/s2
thank me and mark me as brainliest
A 34.75 kg boulder is rolling down a hill. If, at one moment, the boulder has a momentum of 239.5 kg ⋅ m/s, what is its velocity at that time?
Answers
Answer:
Velocity = 6.89 m/s
Explanation:
The equation for momentum: [tex]Momentum=(Mass)(Velocity)[/tex]
Substitute the given information into the equation and solve for velocity.
[tex]239.5=34.75(Velocity)\\\frac{239.5}{34.75}=\frac{34.75(Velocity)}{34.75\\}\\6.89=Velocity[/tex]
An 82 kg man, at rest, drops from a diving board 3.0 m above the surface of the water and comes to rest 0.55 s after reaching the water. What force does the water exert on him?
Answers
Answer:
1626.4 N
Explanation:
Given that a 82 kg man, at rest, drops from a diving board 3.0 m above the surface of the water and comes to rest 0.55 s after reaching the water. What force does the water exert on him?
The parameters to be considered are:
Distance S = 3m
Time t = 0.55s
Since the man started from rest, initial velocity u = 0
Using second equation of motion
S = Ut + 1/2at^2
3 = 1/2 × a × 0.55^2
3 = 1/2 × a × 0.3025
a = 3/ 0.15125
a = 19.83 m/s^2
Force = mass × acceleration
Force = 82 × 19.83
Force = 1626.4 N
Therefore, the force that water exerted on him is 1626.4 N
What will be the average velocity of a body falling in free fall on Earth for 3 s?
Answers
Answer:
29.4m/s
Explanation:
Given parameters:
Time = 3s
Unknown:
Average velocity = ?
Solution:
To solve this problem, we use the expression below:
v = u + gt
v is the average velocity
u is the initial velocity = 0m/s
g is the acceleration due to gravity = 9.8m/s²
t is the time
So;
v = 0 + (9.8 x 3) = 29.4m/s
A man standing on top of a 30 m tall building throws a brick downwards with a velocity of 12 m/s. Determine the speed of the brick just before it hits the ground.
Answers
Answer:
27.1m/s
Explanation:
Given parameters:
Height of the building = 30m
Initial velocity = 12m/s
Unknown:
Final velocity = ?
Solution:
We apply one of the kinematics equation to solve this problem:
v² = u² + 2gh
v is the final velocity
u is the initial velocity
g is the acceleration due to gravity
h is the height
v² = 12² + (2 x 9.8 x 30)
v = 27.1m/s
I need help please
What % of offspring will be green?
Answers
Answer:
50%
Explanation:
Gg = 50%
gg = 50%
are these punnet squares?
Which of the following is NOT a benefit of dancing?
1. Improves balance and coordination.
2. Helps boost your mood.
3. Challenges your brain.
4. Isolates you from other people.
Answers
Answer:
4
Explanation:
Mutations in sections of DNA can be caused by all of the following EXCEPT
Question 2 options:
Viruses
Chemicals
Ultraviolet Radiation
Sexual Reproduction
Answers
Answer:
sexual reproduction
Explanation:
The person with the greatest ___ hits earth first
A. Volume
B. Mass
C. Density
D. Weight
Answers
A because that’s what I learned
The person with the greatest density will hit the earth first.
What is Density?This is regarded as the mass per unit volume of a substance.
Density = mass/ volume
In objects with different densities, the drag and buoyancy forces will be the
same. They will however have different gravitational force in which the
denser object has more compared to lighter ones.
Read more about Density here https://brainly.com/question/1354972
A boxer pushes on a 25 kg heavy bag which is attached to the ceiling until it makes an angle of 36 degrees to the vertical. How much force must the boxer exert on the bag?
Answers
Answer:
198.20 N
Explanation:
Given that,
Mass of a heavy bag, m = 25 kg
The bag is attached to the ceiling until it makes an angle of 36 degrees to the vertical.
We need to find the force must the boxer exert on the bag. The force acting on the bag is given by :
[tex]F=mg\cos\theta\\\\=25\times 9.8\times \cos(36)\\\\=198.20\ N[/tex]
So, the required force is 198.20 N.
A funnel shaped low pressure system that is typically associated with strong thunderstorms is a(n)_______. *
Answers
Tornadoes are narrow, funnel-shaped spirals of rapidly rotating air that form in association with thunderstorms. And they are also near-circular low pressure systems.
Answer:
Tornadoes
A tornado is a violently rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloudExplanation:
2. A tower is 15.24 m high. At a certain distance away from the tower, an observer
determines that the angle of elevation to the top of it is 41°. How far is the observer
from the base of the tower?
Answers
Explanation:
Opposite side from the 41° angle = 15.24m
We wish to find the adjacent side (horizontal length)
Therefore 15.24m / tan41° = 17.53m.
I need info about galileo galilei. I would love it if you could help. You can just get the points if you want.
Answers
An object completes 10 cycles in 50s.
a. What is the period of its rotation?
b. What is the frequency of its rotation?
Answers
Answer:
.
Explanation:
Explanation:
Given parameters:
Number of cycles = 10cycles
Time taken = 50s
Unknown:
Period of its rotation = ?
Frequency of its rotation = ?
Solution:
The period of rotation is the time taken time taken for a body to complete a number of rotation;
Period = [tex]\frac{t}{n}[/tex]
t is the time
n is the number of cycles
Period = [tex]\frac{50}{10}[/tex] = 5s
The period is 5s
Now, frequency is the inverse of period;
F = [tex]\frac{1}{period}[/tex] = [tex]\frac{1}{5}[/tex] = 0.2Hz
Can yall help me please?? I can't get it wrong!
Answers
Answer:
The answer should be C
Explanation:
A boy pulls his toy on a smooth horizontal surface with a rope inclined at 60 degree to the horizontal if the effective force pulling the toy along the horizontal surface is 5 Newton calculate the tension in the rope
Answers
Answer:
Tension = 2.5 N
Explanation:
Given:
Angle = 60°
Force f = 5 N
Find:
Tension
Computation:
Tension = fcosθ
Tension = (5)cos60
Tension = (5)(1/2)
Tension = 2.5 N