Maria’s father started a fire in the fireplace. He crumpled some paper, lit a match, and soon the logs in the fireplace were burning. In this case, the stored chemical energy in the logs was changed intoA) electrical energy.

B) mechanical motion.

C) heat and light energy.

D) electrical and heat energy.

Answers

Answer 1

Answer: In this case the stored chemical energy in the logs was changed into heat and light energy. The correct option among all the options that are given in the question is the third option or option "C". The logs started burning and this burning released the light energy and the heat energy. I hope this answer helps you.

Related Questions

Planets in our solar system revolve around the Sun because A. the Sun is the hottest object in our solar system. B. the Sun is the brightest object in our solar system. C. the Sun is the most massive object in our solar system. D. the Sun is the slowest object in our solar system
A 12-tooth gear is turned two times. How many times will the 24-tooth gear to which it is connected turn?
Why do paradigms change over time
The car salesman tells you that the car can go from a stopped position to 60 miles per hour in 6 seconds. He is giving you the car's rate of
To find the number of neutrons in an atom, you would subtractA.) mass number from atomic number B.) atomic number from mass number C.) atomic number from electron number D.) isotope number from atomic number

A racecar is equipped with a computer that records the reading on its speedometer every second during a race. If you graph this data, what will be the best choice for the dependent variable?

Answers

Since the device is a speedometer, the data it read is the speed of the racecar. Data recording involving time usually uses time as the independent variable. It was also said in the problem that it records the speed every second which shows that the time interval is constant. This means that only other data, the car's speed, is the dependent variable.

Which of these statements best describes an effect of changes in Earth's magnetic field? A) Southern lights are seen at high altitude places like Alaska.
B) Northern lights are seen at low latitude places like Michigan.
C) The solar wind moves away from Earth towards other planets.
D) The magnetic north and south poles of Earth are interchanged.

Answers

The right answer for the question that is being asked and shown above is that: "D) The magnetic north and south poles of Earth are interchanged." The statement that best describes an effect of changes in Earth's magnetic field is that D) The magnetic north and south poles of Earth are interchanged.

Answer: D) The magnetic north and south poles of Earth are interchanged."

Explanation:

a 1.0 kg ball is thrown into the air with an initial velocity of 30 m/s. How much kinetic energy does the ball have?

Answers

KE=.5mv^2
KE=.5(1)(30^2)
KE=(.5)(900)
KE=450
Assuming no air resistance....

Final answer:

The kinetic energy of a 1.0 kg ball thrown with an initial velocity of 30 m/s is calculated using the formula KE = 1/2 mv^2, resulting in an energy of 450 Joules.

Explanation:

The question you've asked pertains to calculating the kinetic energy of a ball thrown into the air. To find the kinetic energy (KE) of a 1.0 kg ball thrown with an initial velocity of 30 m/s, you can use the formula KE = ½ mv², where m is the mass of the ball and v is the velocity. Plugging in the values, you get KE = ½ × 1.0 kg × (30 m/s)² = 0.5 × 1.0 × 900 = 450 J. Therefore, the kinetic energy of the ball is 450 Joules.

Learn more about kinetic energy here:

brainly.com/question/26472013

#SPJ12

A skier starting from rest accelerates in a straight line down a 43,000 m slope at 1 m/s. How fast were they moving after 5 s?

Answers

Answer:

5m/s

Explanation:

The skier accelerates at 1 m/s, then, the acceleration is:

$a=1(m)/(s^2)$

to find the speed after 5 seconds you use the following formula:

$a=(v-v_o)/(t)$

but vo = 0m/s because the skier is at rest at the beginning.

You do v the subject of the formula:

$v=at=(1(m)/(s^2))(5s)=5(m)/(s)$

hence, the velocity is 5m/s

Which best explains why the shapes of a liquid can change

Answers

the shape of a liquid can change because the atoms in it are not close together to form a solid, they flow freely.

The shape of a liquid can change because of the bonds between its atoms. Atoms in a liquid are loosely bonded, allowing them to roll over one another but not completely escape one another. In contrast, the atoms in a solid are so closely packed together that they can only vibrate in place, while the atoms in a gas have such little attraction between them that they fly in every direction and do not stay near one another at all. In a liquid, the atoms still stay close to one another, but are able to move, changing the overall shape of the liquid.

Hope this helps!

Dark matter may explain _____.A.unexpected orbital velocities of stars in galaxies
B.the source of energy that fuels stars
C.the expansion of the universe
D.the origin of life
E.what came before the big bang

Answers

Answer: A.unexpected orbital velocities of stars in galaxies

Explanation:

Dark Matter makes up about 80% of matter in the universe. This matter does not emit light and hence, it is called dark matter as it cannot be observed directly.

The effect of the presence of the dark matter is unexpected orbital velocities of stars in galaxies. At the center, the orbital velocities are greater than those at the edge. Had there been no dark matter, the galaxy would have flown apart.

Dark matter may explain unexpected orbital velocities of stars in galaxies.

Other Questions

Mary starts from her house, walks 80 meters south, and stops to chat with her aunt on the sidewalk. After chatting for a few minutes, she walks 125 meters to the west to meet a friend and then walks 45 meters north with her friend to a cafe for lunch. Overall, she takes 10 minutes to do all this. What is Mary’s average speed?

Charles is having a lot of problems with errors in a very complicated spreadsheet that he inherited from a colleague, and he turns to another co-worker, Seymour, for tips on how to trace errors in the sheet. If Charles sees which of the following, Seymour explains, there is a mistyped function name in the sheet.a.#FORM?b.#NAME?c.#####d.#FNCT?

What is the length of an aluminum rod at 65°C if its length at 15°C is 1.2 meters?

Opponents of rent control believe that it causes _____.