Simone created a chart to summarize the energy transformations that take place when energy from the wind is used to generate electricity.Which best completes the chart?

Answers

Answer 1

Answer:

Answer;

-kinetic energy transformed to mechanical energy

Explanation;

-When the blades are moved or spins (rotational motion) some part of the kinetic energy of the wind is transformed into rotational kinetic energy of the the blades, which makes an axis rotate generating the electricity.

-KInetic energy is mechanical energy (mechanical energy is basically kinetic energy and gravitational potential energy).

-Therefore, the kinetic energy of the wind is transformed into kinetic energy of the windmill (mechanical energy) and it is then transformed into electrical energy.

Answer 2

Answer:

Wind power is produced from the wind turbines or sails that uses air flow to convert it into mechanical power. It is an alternative to fossil fuel burning, it is all around, renewable, clean, produces no greenhouse gases and uses little land. The advantages of wind power have been greatly praised by many. However, it has disadvantages. Wind power especially at farm is noisy and may spoil the view for their neighboring people. Also the amount of electricity depends on the strength of the wind. If no wind is around, no electricity is produced.

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How was Bohr's atomic model different from those of previous scientists?

Answers

Answer:Bohr placed the electrons in distinct energy levels. Rutherford described the atom as consisting of a tiny positive mass surrounded by a cloud of negative electrons. Bohr thought that electrons orbited the nucleus in quantised orbits.

Explanation: also rutherfords was just a hypothesis while Bhor took the time to make his an experiment

Electromagnetic waves can travel through empty space true or false

Answers

False. Heat radiation from the sun cannot reach Earth, we cannot receive TV or GPS signals from satellites, and we cannot detect the light from distant stars.
Oh, wait . . .

Help me on this question? log x-log 9=1

Answers

$\log { x } -\log { 9 } =1\n \n \log { \left( \frac { x }{ 9 } \right) } =1\n \n \log _( 10 ){ \left( \frac { x }{ 9 } \right) } =1\n \n { 10 }^( 1 )=\frac { x }{ 9 } \n \n 9\cdot 10=x\n \n x=90$

This is because:

$\log _( a ){ \left( \frac { x }{ p } \right) } \n \n =\log _( a ){ \left( \frac { { a }^( m ) }{ { a }^( n ) } \right) } \n \n =\log _( a ){ \left( { a }^( \left( m-n \right) ) \right) } \n \n =\left( m-n \right) \cdot \log _( a ){ a } \n \n =m-n\n \n =\log _( a ){ x } -\log _( a ){ p } \n$

   log(x) - log(9) = 1

Subtracting the logs of numbers gives you the log of
the quotient of the numbers.

   Log(x) - log(9) is the log of (x/9).

So the equation says: log (x/9) = 1

Raise 10 to the power of each side: 10^(log of x/9) = 10^1

But 10^(log of x/9) is x/9, and 10^1 is 10.

So x/9 = 10

   x = 90

Martha and Mary are trying to move an old toy Barbie Jeep that is broken up a hill. Martha is applying 35 N of force and Mary is applying 20 N of force. What is the net. force being applied to the box and is it balanced or unbalanced

Answers

Answer: Net Force is 15 N towards Martha

Its an unbalanced force

Explanation:

How many Btu per hour are lost through a 100-square foot wall that is made up of a 12-inch thick concrete block wall with an R value of 1.89 and 4 inches of fiberglass insulation with an R value of 14.8? The inside temperature is 65 degrees F and the outside temperature is 15 degrees F.

Answers

Answer:

300 Btu per hour

Explanation:

given data

area = 100-square foot

thick = 12 inch

R value at 12 = 1.89

R value at 4 = 14.8

inside temperature = 65 degrees F

outside temperature = 15 degrees F

to find out

How many Btu per hour

solution

we get here How many Btu per hour that is express as

Btu per hour = $(area*temp\ difference)/(r\ value\ 12 + r\ value\ 4)$ ............1

put here value we get

Btu per hour = $(100(65-15))/(1.89+14.8)$

Btu per hour = 299.580

so Btu per hour is 300 Btu per hour

A wave will "break" because ________. a wave will "break" because ________. the sediment load of water is greater near the shore of random molecular motion in wave forms the density of water increases closer to shore the bottom interferes with its oscillatory motion the wind increases its speed near shorelines

Answers

A wave will "break" because the bottom interferes with its oscillatory motion. Breaking of waves may occur anywhere that the amplitude is sufficient, including in mid-ocean. When waves enter shallow water they break because the motion of water in lower part of the wave nearest the bottom is slowed by friction so that their oscillation is faster than its supporting portion at the bottom. Thus, the wave collapses forward and breaks.

Final answer:

A wave breaks due to the interference of the ocean floor with its oscillatory motion. As the wave nears the shore and the water gets shallower, the bottom of the wave slows down while the top continues its original speed, causing the wave to break.

Explanation:

A wave will 'break' or crash due to its interaction with the ocean floor as it approaches the shore. Waves follow an oscillatory motion, moving in an up-down pattern. When a wave gets closer to shore, the water becomes shallower which interferes with the oscillatory motion of the wave. The bottom of the wave slows down upon hitting the ocean floor while the top of the wave continues its original speed. This causes the wave to become steep and eventually break, forming the crashing wave front we often see on beaches.

Learn more about Wave breaking here:

brainly.com/question/6952808

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