Give an example for each of the following energy conversion:
(1) electrical energy to kinetic energy.
(2) chemical energy to electrical energy
Answers
ANSWER:
(1) Electric motors
(2) Batteries
2 batteries
Related Questions
Compare and contrast similarities and differences between mechanical waves and electromagnetic waves.
Answers
Answer:
Electromagnetic waves are waves that have no medium to travel whereas mechanical waves need a medium for its transmission. Electromagnetic waves travel in a vacuum whereas mechanical waves do not. While an electromagnetic wave is called just a disturbance, a mechanical wave is considered a periodic disturbance.
Explanation:
sorry if wronggggggggggggggggggg
When you drop something, first of all it accelerates.
The faster it falls, the bigger the force of ______ that acts on it.
choose from the list to complete the sentence:
friction gravity air pressure
note: apparently the answer is friction but it doesn't make sense to me so please explain.
Answers
The faster an object is going, the more resistance there will be. An example of this would be if you're running the faster you run, the more air is going against you.
I hope this helps!
100 POINTS AND BRAINLIEST NO CAP IF YOU WRITE THIS CORRECTLY AND DECENTLY. IF YOU HAVE A QUESTION PUT IT IN THE COMMENTS NOT AN ANSWER PLS
You have learned that power is the speed, or rate of doing work. In this report you will learn more about James Watt or horsepower.
Here is your goal for this assignment:
Complete an activity on power
Complete one of these activities:
1. Research the life of James Watt. Report in about fifty words some of the important events in Watt's life leading up to the watt being named in his honor.
2. Conduct a survey of equipment and cars to find out the amount of horsepower of each item you check. You may visit a car dealer, an appliance store, a heavy-equipment dealer. Make a list of the horsepower of at least ten items of equipment. Some suggestions include: comparing two or three different makes of cars or finding the horsepower of a lawn mower, boat, vacuum cleaner, or some heavy equipment for moving dirt. You may find that the power of a washing machine or vacuum cleaner is given in watts instead of horsepower. Make a chart to record your findings, including:
Type of Equipment Surveyed: (Indicate whether it is a car, shovel, vacuum cleaner, etc.)
Amount of Horsepower or Watts: (Record power in horsepower or in watts.)
Answers
Answer:
(i did number 1) James Watt was a Scottish inventor, mechanical engineer, and chemist who improved on Thomas Newcomen's 1712 Newcomen steam engine. In 1762, he began studying steam engines. With his knowledge, in 1763, he repaired a "Newcomen" engine owned by the university. However, while repairing it, he was impressed by its waste of steam, and came upon a solution, the separate condenser. It was his first invention, and he created it in 1769. In 1765, he produced his first working model of the 'Watt' engine (with separate chambers for piston and steam). (i rly hope this helps no need to mark branliest if it doesnt)
Explanation:
HURRY! Match each action with the charging method it demonstrates:
Rubbing a balloon on hair:
charging by
friction
conduction or induction
Touching a metal sphere with a negatively charged rod:
charging by
friction
conduction
induction
Moving a negatively charged rod near a metal sphere that is grounded:
charging of friction
conduction
or induction
Touching a metal sphere with a positive aluminum plate:
charging by friction
conduction
or induction
Answers
Answer: first one: a second: b
3rd: induction
4rth:conduction
Explanation:
i had these question
Choose two objects from the illustration. Based on the scene, how might these objects be in motion and a reference point at the same time? Please answer Assignment is due in 30 minutes
Answers
Answer:the sun and the person
Explanation:
According to special relativity theory, motion is considered as based on the observer's a reference frame (the frame which an observer uses for the description of of the observed phenomenon)
The chosen objects are the trees and the airplane wings
1) The trees are;
In motion when viewed from the Sun
Reference point to the man standing
2) The wings of the airplane are;
In motion compared to the trees as seen by the man standing
Reference point to the passengers in the plane
The reason for the above associations is as follows:
An object is said to be in motion where its location with regards to its surroundings changes with time
An object is said to be a reference point if it is used to determine if another object is in motion
The two chosen objects which are; 1) The trees and 2) The wings of the airplane
The chosen objects in the illustration are in motion and a reference point at the same time as follows:
1) (i)a. The trees in the illustration with regards to (wrt) the view from the Sun is in motion as the Earth is turning around its axis. The tree is moving relative to the Sun as the Earth rotates such that the Sun sets
b. As seen by the airplane passengers, the trees are also in relative motion compared to the wings of the airplane
(ii) a. The trees are a reference point used by the man to tell that the airplane is moving. With the aid of the tree the man is able to tell that the airplane is flying by
b. The trees are also a reference point used by the airplane to know that its position is changing and therefore is in motion relative to the items on the ground
2) The wings of the airplane is in motion as viewed by the man compared to the trees and the building
(ii) The wings of the airplane is a reference point with regards to the pilot or passengers of the airplane with which he knows that the airplane is in motion
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In this longitudinal wave, label the arrow that shows the direction the wave travels with a T. Label the arrow that shows how the spring is disturbed with a D.
please help
Answers
Why is it important for a peer to review your writing, in addition to reviewing it yourself?You still have the ideas in your head, so you may not notice when they did not make it onto the page.
You will ignore all of the problems in your report because you won’t want to fix the problems.
All of the above
A peer has a better understanding of your topic than you do and can find mistakes.
Answers
Answer:All of the above
Explanation:
Explain this quote "ambition beats genius 99% of the time. "
Answers
Answer:
The idea that hard work is the most important aspect of new inventions existed before Edison gave his quote, however.
The idea behind this quote is that it is easy to have a good idea, or a creative insight. However, to follow through with that idea, and turn it into a reality, takes a level of patience and dedication that few people have.
Explanation:
Explanation: Meaning 99% of the time being ambitious about something and just really going for it and doing your best will work better in day to day life.
What is the Eiffel Tower made of?
Answers
Answer: The Eiffel Tower is primarily made of iron. Gustave Eiffel, the French engineer who designed and oversaw the construction of the tower, used wrought iron to build its frame. In total, the tower contains about 18,000 individual iron pieces and weighs over 10,000 tons. The iron framework is held together by 2.5 million rivets. The tower's base is made of concrete, and the top portion of the tower is covered in bronze plates.
Explanation:
A 10 gram ball is held 2 meters from the ground. It has potential energy. Calculate it.
Answers
Answer:
196J or 200J
Explanation:
Potential Energy = mgh
m( mass) = 10gm
h ( height) = 2m
g = 9.8 or 10 m/s ^2 ( choose whichever one is taught to you, usually in my school its 9.8 if the value isn't given )
PE = 10 × 10 × 2 = 200 J
or
PE = 10 × 9.8 × 2 = 196 J
Hope it helps
Answer:
200J
Explanation:
2m x 10gm = 200
A meteor falls toward Earth's surface. Given that the acceleration due to
gravity is 9.8 m/s^2, what is the meteor's potential energy if it has a mass of 10
kg at an altitude of 400 m?
O A. 408 J
O B. 7,840,000 J
O C. 2J
O D. 39,200 J
Answers
Answer:
39,200J
Explanation:
just took the test
The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J
What is potential energy ?Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.
mass(m) = 10kg
g (acceleration due to gravity) = 9.8m/s^2
altitude(height (h)) = 400m
Meteor's Potential energy = m * g * h
= 10 * 9.8 * 400 = 39200 J
correct option will be a) 39200 J
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Why did SpaceX install sun shields on the Starlink satellites? A to reduce light pollution caused by the satellites B to keep the satellites cool C to increase the amount of light reflected by the satellites D to provide solar power to the satellites
Answers
Answer:
The Answer is A
Explanation:
SpaceX was hoping to limit the effect on astronomy by providing sun shields to Starlink.
Hope I could help. If I was indeed correct, I would appreciate it if you can mark me as Brainliest.
a scientist studies a model of a widely accepted theory about the universe.the model would most likely help the scientist to
A- understand a theory which cannot be observed,
B- prove that the theory would not change in the future,
C-demonstrate how the theory can be changed into a law,
D- prove that all the other theories about the universe are incorrect
NEED HELP ASAP
Answers
Answer:
D try that answer if it's not correct try A
Explanation:
1
2
3
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Which change will always result in an increase in the gravitational force between two objects?
increasing the masses of the objects and increasing the distance between the objects
O decreasing the masses of the objects and decreasing the distance between the objects
Som
SUreasing the masses of the objects and decreasing the distance between the objects
decreasing the masses of the objects and increasing the distance between the objects
Ο Ο Ο Ο
Answers
Answer:
Increasing the mass and decreasing the distance between the two objects.
Explanation:
An increase in mass will cause them to have a stronger pull or gravity. A decrease of distance will make it easier for the objects to fall into each other because they would be further into the other objects area of influence.
Dominic made the table below to organize his notes about mixtures.
What mistake did Dominic make?
A- The title should read “Properties of Solutions” because some mixtures do not have all of the properties listed.
B- There is a definite recipe to make each mixture, so the composition of a mixture is set.
C- Although it is possible to have more than one state, it is also possible to have only one state.
D- A single substance can be used to make a mixture if the substance is composed of more than one element.
Answers
Answer:
A
Explanation:
Mixtures do not always follow the following properties, but solutions do!
a. Does the magnet have to be touching the nail to lift the tack or paper clip?
b. How close does it have to be? Experiment with different-sized magnets.
c. Does the size of the magnetic field change with the size of the magnet?
ANSWER ALL A, B, AND C.
Thank you.
Answers
Answer:
a:no
b: super close
c:yes
Explanation:
Huan wants to enter the science fair at his school. He has a list of ideas for his project. Which questions could be answered through scientific investigation? Check all that apply. Does pressure have an effect on the solubility of a substance? Which physicist was the smartest? Is the information on the periodic table difficult to understand? Which brand of soap is the best for cleaning grease off of dishes? Which laboratory experiment is the most fun to perform?
Answers
Explain what phase of the moon corresponds to the position of the moon from the top view and the view from Earth. What is the pattern of the moon phases? What is the Terminator? How does light travel in space?
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How are weathering and erosion the same?
(A) both move sediment from one place to another.
(B) both break down rocks into smaller pieces
(C) both change Earth's surface
(D) both leave sediment in new places
Answers
explanation:
cuz it is
prove p = hdg
please give answer if you know
Answers
P = Force/Area
= Weight/Area
= Mass × gravitational field strength/Area
= Density × Volume × gravitational field strength/Area
= Density × Area × height × gravitational field strength/Area
P = height × density × gravitational field strength
Hence, P = hdg
The pressure is the force applied on per unit area of an object. It can also be described as the product of height, density, and gravitational field strength.
What is Pressure?Pressure is the force applied perpendicular to the surface area of an object over which that force is applied. Gauge pressure is the pressure that is relative to the ambient pressure on an object. Various units of power are used to express pressure of an object. The SI unit of pressure is Pascal (Pa).
Pressure of an object can be calculated by the formula:
P = Force/Area
P = Weight/Area
P = Mass × gravitational field strength/Area
P = Density × Volume × gravitational field strength/Area
P = Density × Area × height × gravitational field strength/Area
P = height × density × gravitational field strength
Hence, P = h × d × g
Therefore, the pressure of an object can be calculated as the product of height, density, and gravitational field strength.
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pleeaseeee helllp A geologist finds a large rock containing a fern fossil. This kind of fern grew on land in hot, moist climates.
What does this tell the geologist about the area at the time the rock was formed?
The area was covered by an ocean.
The area was muddy and wet.
The area was hot and tropical.
The area was snowy and cold.
Answers
Answer: The area was hot and tropical.
Explanation:
What two gases in the atmosphere do animals and plants need to breathe and grow?
Answers
Answer: Explanation:
Plants and animals each produce the gases that the other needs to live. Plants need carbon dioxide—people and other animals exhale carbon dioxide as a waste product. People and other animals need oxygen—plants produce oxygen during an important process called photosynthesis, which turns the sun's energy into nutrients.
why the result of the CELL CYCLE is important? Give 3 examples no copy and paste from google or any website please help!
Answers
Answer:
The cell cycle is composed of interphase (G₁, S, and G₂ phases), followed by the mitotic phase (mitosis and cytokinesis), and G₀ phase.
Explanation:
I not sure if it is correct.
what is the answer i need answers now
Answers
Answer:
listening ,communication ,resolution
Explanation:
Supposed to be in biology.
3. What are the basic needs of living things?
4. What happens if a new organism is added to an ecosystem or if the temperature was to change
suddenly?
5. True or False. Ecosystems are always very large and cover a large amount of land.
6. Wha i ecoone
7. A ecosystem that exists on land (outside bodies of water) are called __________________________ and
ecosystems that exist within a body of water are called __________________________
Answers
Answer: Is Below :).
Explanation:
1. What are the basic needs of life?
Food, Sleep, Shelter, Oxygen, Water.
2. What happens if a new organism is added to an ecosystem or if the temperature was to change suddenly?
A. First of all, we would have to know if the new animal is king of the wild or a victim for the king. If its king, we would start to see the population decrease of certain animals and increase of that specie. If its not king we would see an increase in the population of the kings of the wild and decrease in the new specie.
B. If the temperature changed all of a sudden we would see many species die out due to them not being able to adapt to that certain atmosphere.
3. True or False. Ecosystems are always very large and cover a large amount of land.
False, and ecosystem can be large like a jungle but, it can also be small as just a tree in that jungle.
4. What is an ecosystem?
A biological community of interacting organisms and their physical environment.
5. A ecosystem that exists on land (outside bodies of water) are called Terrestrial ecosystem and ecosystems that exist within a body of water are called aquatic ecosystem.
Hope you got the answers to your problems! Have a great day!
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HURRY its for scince
The system that helps the body move by contracting and relaxing
A. Circulatory
B. Respiration
C. Skeletal
D. Muscular
Answers
Answer:
D. Muscular
Explanation:
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It just is ok
When some plants go dormant in the winter, what seasonal change do Florida animals experience?
A: Some animals hibernate.
B: Animals begin to store food.
C: Some animals also go dormant.
D: Animals store fat and gain weight.
Answers
Please help I have a time limit of 15 minutes and I only have 5 left
Answers
Answer: I'm pretty sure it's either crest or trough... So, the official answer is Crest because this picture helped me...
HELP ME PLZ !!!!!!!!!!!!!!!!!!!!
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Answer:
Explanation:
Its the 2nd one on the left (the bolded one)
please help
list real-world examples of the different types of stimuli
Answers
Answer:
You are hungry so you eat some food. A rabbit gets scared so it runs away. You are cold so you put on a jacket. A dog is hot so lies in the shade. It starts raining so you take out an umbrella.