Answer:
he solved ptolemy's model of the solar system
he determined that planets move faster when closer to the sun
he discovered laws of planetary motion
Explanation:
•✧•
John Kepler made significant contributions to optics and geometries. Options 2,4 and 5 are the statement that shows the contribution of Johannes Kepler.
What are the contributions of Johannes Kepler?Johannes Kepler was indeed an astronomer and mathematician who finds the planet's elliptical orbits around the sun.
He identifies three basic rules of planetary motion. He also made significant contributions to optics and geometries.
Following are the contributions of Johannes Kepler;
2. He solved Ptolemy’s model by proving elliptical orbits.
4. He determined that planets move faster when closer to the Sun.
5. He discovered the laws of planetary motion.
Hence options 2,4 and 5 are the statement that shows the contribution of Johannes Kepler.
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WILL RATE BRAINLIEST!!!
When you use electricity in your home,
which resources are powering it?
Research the energy resources used
to power your state’s electrical grid
(that’s what supplies your home with
electricity). In the space below or on
a separate sheet of paper, create an
informative handout to provide to the
people of your state.
Include the following information in your handout:
• Which state do you live in?
• What is the population of your state?
• What percent of the electricity in your state comes from
nonrenewable resources?
• What percent of the electricity in your state comes from
renewable resources?
• What percent of the electricity in your state comes from
nuclear energy?
• Which renewable resource is used the most in your state?
• What is an interesting fact about energy usage in your
state?
I live in United Arab Emarates/Dubai
Powering Your Home: Understanding Energy Resources in Dubai, United Arab Emirates
Dubai, one of the seven emirates of the United Arab Emirates, is a rapidly growing city with a population of over 3.3 million people. With the increase in population and development, the demand for electricity has also risen significantly. Have you ever wondered where the electricity that powers your home comes from? In this handout, we will provide you with information about the energy resources used to power the electrical grid in Dubai.
Nonrenewable Resources:
Dubai relies heavily on nonrenewable resources such as natural gas and oil to generate electricity. As per Dubai Electricity and Water Authority (DEWA), in 2020, 94% of the electricity generated in Dubai came from natural gas and 6% from coal.
Renewable Resources:
Dubai has been working to diversify its energy mix by investing in renewable resources. According to DEWA, 6% of Dubai's electricity in 2020 was generated from renewable sources, such as solar and waste-to-energy. DEWA has set a target to increase the share of renewable energy in Dubai's energy mix to 75% by 2050.
Nuclear Energy:
Dubai is also investing in nuclear energy to diversify its energy mix. The first nuclear power plant in the UAE, the Barakah Nuclear Energy Plant, started operations in 2020. It is expected to generate 5.6 GW of electricity and will contribute to reducing carbon emissions.
Most Used Renewable Resource:
Dubai has the world's largest single-site solar energy project, the Mohammed bin Rashid Al Maktoum Solar Park. It is a key component of Dubai's clean energy strategy, and its capacity is expected to reach 5 GW by 2030. The solar park uses photovoltaic solar panels to convert sunlight into electricity.
Interesting Fact:
Dubai is home to the world's tallest building, the Burj Khalifa, which has been designed to be energy-efficient. It uses a combination of technologies such as a high-performance glass facade, an efficient air-conditioning system, and a double-decker elevator system that reduces energy consumption by 20%.
Conclusion:
Dubai's energy mix is currently dominated by nonrenewable resources, with natural gas being the primary source of electricity generation. However, the city is making significant strides to increase the share of renewable energy and diversify its energy mix. By investing in nuclear energy and the Mohammed bin Rashid Al Maktoum Solar Park, Dubai is working towards achieving its goal of becoming a sustainable city and reducing its carbon footprint.
Answer: Windmills and solar panels
Explanation: It is used by solar energy from energy and friction with the atmosphere and CO2
Match the correct sentence together.
Questions:
10 pounds 20 feet =
37 pounds 10 feet =
29 newtons 10 meters =
30 newtons 2 meters =
Answers:
200 foot-pounds
60 newton-meters
290 newton-meters
20 foot-pounds
370 foot-pounds
What units are used to measure mass and weight? Mass and weight are measured in kilograms. Mass and weight are measured in newtons. Mass is measured in kilograms, and weight is measured in newtons. Mass is measured in newtons, and weight is measured in kilograms.
Mass can be measured in kilograms and other units of mass, but not in Newtons.Weight can be measured in Newtons and other units of force, but not in kilograms.
What is mass?In physics, mass is a quantitative measurement of inertia, a basic characteristic of all matter. It essentially refers to a body of matter's resistance to changing its speed or location in response to the application of a force. The change caused by an applied force is smaller the more mass a body has.
Weight of the body is mass times of gravity that is relative quantity changes with acceleration due to gravity. Mass is absolute quantity it is measured in Kg while weight is force so measured in Newton.
Mass can be measured in kilograms and other units of mass, but not in Newtons.Weight can be measured in Newtons and other units of force, but not in kilograms.
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Choose all the answers that apply.
Stars:
usually seem bright if they are close to Earth
are terrestrial bodies
use their own matter to create nuclear reactions
generate their own energy
are classified primarily by temperature
Answer:
use their own matter to create nuclear reactions
generate their own energy
are classified primarily by temperature
usually seem bright if they are close to Earth
Explanation:
The answers that apply for the stars are 1,2,4 and 5. Stars usually seem bright if they are close to Earth.
What is a star?A star is a heavenly body made up of a brilliant spheroid of plasma held together by gravity. The Sun is the closest star to Earth.
Many additional stars may be seen with the normal eye at night, but due to their great distance from Earth, they appear as stationary points of light in the sky.
The answers that apply for the stars are as follows;
1. Usually seem bright if they are close to Earth.
2. Stars are terrestrial bodies.
4. They generate their own energy.
5. Stars are classified primarily by temperature.
The answers that apply for the stars are 1,2,4 and 5.
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Put them in order need help plz
Answer:Betelgeuse
Antares
Sirius
Archutus
The sun
Explanation:
I looked on safari
How is net force calculated?
Answer:
The formula in order to calculate FN is:
F net = F a + F g
You can now solve any problem with this formula as long as you know the measurements.
A couple wants to build a holiday cottage, the cottage is not connected to an electricity grid, but the cottage is next to a small river. The river is always flowing and never dries up, the weather is often windy.
Which one should they get to receive energy.
a wind turbine
solar cells
Answer:
Wind turbine since the place is often windy
Is this right?
Meryl is making a collage of pictures for her science class. On one-half of a piece of poster board, she is attaching pictures of the result of adding heat to materials. On the other side of the poster, she is attaching pictures of the result for removing heat from materials. Which of the following pictures should be placed on the side of heat being removed from the material?
a frozen popsicle
baked cupcakes
steam from a pot
melted candy bar
Answer: It's kind of a subjective question by saying Which of the following pictures should be placed on the side of heat being removed from the material?
Explanation: I'm not entirely sure about this but I would think that it would be baked cupcakes because they had to undergo heat to become "baked", so they are the result of heat.
in a car how does an airbag minimize the force acting on a person during a collision
Answer:
It increases the time it takes for the person to stop.
Explanation:
Answer:
It increases the time it takes for the person to stop.
Explanation:
Please help Idk what this is
Answer:
The answer is: A
Explanation:
Thermal energy (also called heat energy): is produced when a rise in temperature causes atoms and molecules to move faster and collide with each other. The energy that comes from the temperature of the heated substance is called thermal energy.
Chemical energy: is energy stored in the bonds of chemical compounds, like atoms and molecules. This energy is released when a chemical reaction takes place. Usually, once chemical energy has been released from a substance, that substance is transformed into a completely new substance.
When you light the match, a chemical reaction is occurring first, and then heat will flare (thermal energy).
Let me know if anything is wrong! During my research, I noticed that mechanical energy occurs first (the option is not here), and it's related to chemical energy, so that was my decision.
Answer:
it is A and D
Explanation:
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
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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Which of the following statements are examples of positive peer pressure?
Select all that apply.
A
Your teammate tells you not to talk to your friends who did not make the team.
B
Your classmate encourages you to eat a whole pizza and drink a whole 2-liter bottle of soda.
C
Your teammate cheers you on as you head for the goal.
D
Your siblings tell you that they like your new sneakers.
Answer:
C and D
Explanation:
have a great day
It’s 11:53pm right now and I have just this assignment left to do for this class, I need this assignment done so I don’t fail this class, can I get some help please, I will literally give you brainliest if I get full and correct answers I just need to finish this now and I’m exhuasted, watching the video for it would just make me too tired to stay awke thank you
Answer:
Explanation:
1 matter
2 the chain / air pressure
3 gravity
4 in the cup
5 inertia
6 pushed or pulled
7 rest
8 motion
9 mass
10 reaction
11 b
12 a
13 grams
14 listen to the song
Soil classification is partially determined by the presence of organic material, such as humus. Which would have more humus—a desert or a forest—and why? Check all that apply.
a forest because it has more trees to provide plant litter
a desert because it has soil with a larger particle size
a forest because it has more animals to mix the soil
a forest because the trees prevent rain from reaching the soil
a desert because the dry air decomposes plant litter
a desert because it has soil with a larger particle size. Hence option B is correct. Hence option B is correct.
What is Dessert ?Dessert is the final course of a meal. The dish includes sweet snacks like sweets and sometimes a beverage like dessert wine or liqueur. There is no tradition of a dessert course to finish a dinner in several regions of the world, such as Greece and West Africa, and in most parts of China.
Desserts include biscuits, cakes, cookies, custards, gelatins, ice creams, pastries, pies, puddings, macaroons, sweet soups, tarts, and fruit salad. Fruit is also typically seen in dessert courses due to its inherent sweetness. Desserts are made in certain cultures by sweetening savoury dishes. In the 18th and 19th centuries, when refined sugar and wheat were widely available and ostentation and artifice were desired, the dessert course achieved its pinnacle in the feasts of the European courts. Numerous creams, tarts, fruits, cakes, pastries, puddings, jellies, and meringues were given on tables decorated with flowers and architectural fancies made of sugar and pastry.
Hence option B is correct.
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Answer: The answers are a & c.
Explanation: I just did it
Give one example when it might be important to know how much gravitational potential energy is stored by an object. Why is it important?
Answer:
A possible situation in knowing the gravitational potential energy of an object is to find it's maximum kinetic energy. It can be important if I would want to calculate the velocity the object will be having if the potential gravitational energy will be converted into kinetic by using the formula.
Imagine that you could ride a baseball that is hit high enough and far enough for a home run. Using the baseball as a reference frame, what does the Earth appear to do?
A child with brown eyes inherited a brown-eyed gene from one parent and a blue-eyed gene from the other parent. Which of these describes the child’s genetic makeup for eye color? (Select all that apply.)
A(homozygous
B( recessive
C( heterozygous
D( hybrid
20 points
Hi guys :) I am in desperate need of help. Thanks <3
Answer:
yes me to i think its A
Explanation:
The blue mass in the image is 10kg.
The red mass in the image is 10kg.
The blue mass is currently 4 meters away from the red mass.
If we change the distance to 6 meters apart, what will happen to the gravitational force each mass puts on the other ?? You have to choose a answer through A,B,C !
Answer A The force of gravity will not change as the masses move away from each other.
Answer B The force of gravity will increase as the masses move away from each other
Answer C The force of gravity will decrease as the masses move away from each other
Answer: C
Explanation:
I guessed lol . Am i right .
Tanya planted seedlings in her garden over the weekend. The instructions that came with the seedlings stated that they need to be planted 0.2 meters apart. Tanya has a measuring tape that has values in centimeters. Help Tanya convert meters to centimeters.
Determine the ratio to use: .
Tanya should plant the saplings 20 centimeters apart.
1 meter is equal to 100 centimeters.
Multiply the given value by the ratio: .
Answer:
Explanation:
1 meter = 100 cm
1 cm = 10 mm
Then,
0.2 m * 100 cm / 1 m = 20 cm
This does not seem like a physics question ??
Match the terms to their definition. 1. energy the ability to do work 2. kinetic energy the energy of motion 3. Law of Conservation of Energy the stored energy of an object 4. potential energy the principle which states that the total amount of energy in a system isolated from the rest of the universe remains constant although energy may be transformed from one form to another within the system
Answer:
Acceleration Due to Gravity
9.8 m/s^2 or 32 ft/s^2, the change in velocity per second at the surface of the earth
Chemical Energy
energy derived from chemical bonding between atoms
Displacement
The length of the shortest path from one point to another
Distance
the length of any given path connecting two points
electrical energy
energy derived from charges in motion
energy
the capacity to do work
force
a push or pull
geothermal energy
energy obtained from steam or water heated below the earth's surface by natural sources of heat
heat energy
energy that results when a temperature change occurs
hydroelectric energy
energy obtained when water behind a dam is used to turn a generator
kinetic energy
energy an object has due to its motion
light energy
energy derived from light
mass
the amount of matter an object has
nuclear energy
energy derived from nuclei of atoms
potential energy
energy stored in an object due to its position
solar energy
energy obtained from the sun
tidal energy
energy obtained from the earth's tides
wind energy
energy obtained from the wind
work
that which occurs when a force moves through a net displacement; the tangible product of expended energy
Efficiency
A measure of the ratio of work done to work available
Law of Conservation of Energy
The principle which states that the total amount of energy in a system isolated from the rest of the universe remains constant although energy may be transformed from one form to another within the system
Power
rate at which work is done or energy expended
Calorie
The amount of heat needed to raise one gram of water one Celsius degree
Gaseous Phase
A state in which matter occupies all available space
Liquid Phase
The state in which matter takes the shape of its container
Plasma Phase
The highest energy state of matter in which matter is ionized
Rotational Motion
Motion on an axis; spin
Solid Phase
The lowest energy state, in which matter definite shape and volume
Specific Heat
The amount of heat added or removed from one gram of matter to change its temperature by one Celsius degree
Temperature
That which matter exhibits by virtue of its molecular motion; a measure of heat
Thermodynamics
The study of energy conversions between heat energy and mechanical energy
Translational motion
change of location
Vibrational Motion
motion with no net displacement
Latent Heat of Fusion
the heat needed to change one unit of matter from liquid to solid with no change in temperature
Latent Heat of Vaporizaion
The heat needed to change one unit of matter from liquid to gas with no change in temperature
First Law of Heat and Thermodynamics
The principle which states that energy can neither be created nor destroyed; the total amount of energy is constant but may be converted from one form to another
Heat Engine
An engine that operates on a temperature difference and releases a great deal of heat
Second Law of Heat and Thermodynamics
The principle which states that whenever energy is transformed from one form to another, some energy is dissipated as heat energy that is useless and cannot be transformed into mechanical energy
Explanation:
why is it difficult for a car to round a curve at high speed
Answer:
Because the force required to produce this acceleration equals the mass of the car x acceleration, the group of the car is the same but the acceleration is a lot more hence a much bigger force is required. So this is why it's harder for cars to corner at a high speed rather than lower.
Answer:
Vehicles are heavy and have a lot of inertia. This means that if you drive too fast on a curve, your vehicle will keep going straight instead of going around the curve, no matter how hard you drive or slow down to keep it in your lane. Centrifugal force creates a strong outward pull on your vehicle. So all you need to do is slow down before entering a corner. Reducing your speed when you are already on a bend can cause your car to skid.
Which factor can increase both potential energy and kinetic energy of an object?
Increase in speed
Increase in mass
Decrease in temperature
Decrease in height from the ground
You left some papers on a picnic table in the park on a windy, sunny day. When you returned, the papers were scattered all over the park. What can you conclude about the flow of energy in this situation?
The heat energy from the sun was transformed to sound energy, which moved the papers.
The heat energy from the sun was transformed into kinetic energy, which moved the papers.
The mechanical energy in the wind was transferred to the papers, which caused the papers to move.
The mechanical energy in the wind was transferred to the table, which caused it to shake and move the papers.
Answer: Option c
Explanation: Wind has kinetic energy to move objects from their places. It is vastly used across the world for the production of electricity.
By turning the kinetic energy of moving air into electrical, the wind is used to generate power. Wind drives the rotor blades of contemporary wind turbines, which transform kinetic energy into rotational energy. A shaft transmits this rotational energy to the generator, which generates electrical energy. More than a century ago, the first wind turbines appeared. After the electric generator was developed in the 1830s, engineers began experimenting with harnessing wind power to create electricity. However, modern wind power is thought to have been invented in Denmark, where horizontal-axis wind turbines were built in 1891 and a 22.8-meter wind turbine started operating in 1897. Wind power generation occurred in the United Kingdom and the United States in 1887 and 1888.
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why might parents allow their kids to opt out of gym class?
a. They think kids should take other subjects in school.
b. They think exercise in school is important.
c. They want their kids to learn teamwork in school.
d. They don’t want to pay for school equipment.
I think its A
i like your username btw
Answer:
I thinks d because some parents don't want to pay all the fees
Students were creating graphs to illustrate the energy transformations that occur as a roller coaster moves along a track. The letters A-D on Graph 1 represent the position of a roller coaster as it moves along a track. The numbers 1-4 on Graph 2 were supposed to represent the energy of the roller coaster at positions A-D, but the students got their data mixed up. How should the bars in Graph 2 be ordered so that they match to the energy of the roller coaster as it moves from position A to B to C to D?
A4 B2 C1 D3
A- it's at the top and not moving so its all potential
B- Bottom so no potential, a little is lost to friction- a little thermal, it's moving so ther'es kinetic
C- in the middle hieght- some potential, lost more to friction so more thermal, not moving so no kinetic
D- bottom, so no potential. more energy lost to friction. still moving so some kinetic
Black to move and capture a hanging piece . Select the best move
A) Nxg3
B) Bxg3
C) Qxg5
Answer: A
Explanation:The Pawn moves directly forward, never backward or to the side. Pawns capture a piece that is one square diagonally forward. Though Pawns normally cannot move diagonally, this is the only way they capture.
Based on the information provided, the best move to capture a hanging piece would be: A) Nxg3
What would be the best move to capture a hanging piece ?Nxg3 would be the best move to capture a hanging piece.
This move involves sacrificing the knight to capture the hanging piece, which could be a bishop or pawn, depending on the position of pieces. After Nxg3, the opponent may capture the knight with different piece, but the player who made the move will have successfully captured the hanging piece.
However, it's important to note that the best move ultimately depends on the overall strategy of the player and the position of the other pieces on the board.
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Charlotte Hornets NBA BASKETBALL TEAM
Answer:
I've heard both good and bad things about them! I'm going to go educate myself now
Explanation:
:)
Answer:
How good are they?
Explanation:
which of the following could be considered a decomposer in the ecosystem
A: Rabbit
B: Plant
C: Mushroom
D: Vulture
If someone lifts less weight than you, explain why that person could be considered more powerful.
Answer:
there faster
Explanation:
stronger,wiser,better,THEY ARE BETTTEEEEEEEERRRRRRRR
Answer:
they're so strong that they don't need to lift heavy weights anymore because they're experts (slay lol). so they just have a simple daily workout.