1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
777dan777 [17]
3 years ago
12

Wood has chemical energy, which can be used to generate thermal and radiant energy when burned in a fireplace. Which best explai

ns what happens to the total amount of energy in this scenario?
Physics
2 answers:
dalvyx [7]3 years ago
8 0

Answer:

In the case of burning wood, stored potential energy (in the form of chemical energy) in the log is released due to heating by other excited atoms. This chemical reaction is called combustion and requires oxygen. Combustion changes the potential chemical energy into kinetic energy in the form of heat.

Last guy copied off my computer when i left room

Explanation:

Marianna [84]3 years ago
7 0

Answer:In the case of burning wood, stored potential energy (in the form of chemical energy) in the log is released due to heating by other excited atoms. This chemical reaction is called combustion and requires oxygen. Combustion changes the potential chemical energy into kinetic energy in the form of heat.

Explanation:

You might be interested in
If the man is on the moon, where the acceleration due to gravity is gm = 5.30 ft/s2, determine his weight in pounds.
Papessa [141]
I am taking the average weight of the man into account here, which is 137 lbs.

We divide 5.30ft/s^2 by 32.2 ft/s^2, which is the acceleration due to gravity here on our planet and multiply the answer with the given weight (In this case, the weight of an average man since no value was stated in the question)

(5.30ft/s^2 ÷ 32.2 ft/s^2) 137 lbs = 22.55 lbs
 
He would weigh 22.55 lbs on the moon.

Hope this helps! 
5 0
3 years ago
How would I explain part a?
grandymaker [24]

Electric field on the axis of ring on both sides is along the axial line

This electric field is away from the center on both sides

Now when an electron is placed on the axis of the ring then we will see that it will experience the electrostatic force on the electron.

The direction of force is always towards the center of the ring because here electron is a negatively charged particle and it will move opposite to the direction of electric field.

So as we release the electron from a distance of 30 cm the electron will move towards the center of ring and accelerate to its maximum speed till it will reach to the center of the ring

After that the electron will reach to the center of the ring and then moves out on the opposite side and then decelerate to zero speed as it will reach on other side.

Now after this it will again move towards the center of the ring and continue its motion similar way

So this is an oscillating motion about the center of the ring.

3 0
3 years ago
How much positive and negative charges is there in a cup of water?
Rina8888 [55]
In a cup of water it is a positive and negative charge of zero
3 0
3 years ago
Tom kicks a soccer ball on a flat, level field giving it an initial speed of 20 m/s at an angle of 35 degrees above the horizont
SVEN [57.7K]

Answer:

(a) 2.34 s

(b) 6.71 m

(c) 38.35 m

(d) 20 m/s

Explanation:

u = 20 m/s, theta = 35 degree

(a) The formula for the time of flight is given by

T = \frac{2 u Sin\theta }{g}

T = \frac{2 \times 20 \times Sin35 }{9.8}

T = 2.34 second

(b) The formula for the maximum height is given by

H = \frac{u^{2} \times Sin^{2}\theta }{2g}

H = \frac{20^{2} \times Sin^{2}35 }{2 \times 9.8}

H  = 6.71 m

(c) The formula for the range is given by

R = \frac{u^{2} \times Sin 2\theta }{g}

R = \frac{20^{2} \times Sin 2 \times 35}{9.8}

R = 38.35 m

(d) It hits with the same speed at the initial speed.

8 0
3 years ago
What is the wavelength in air of red light from a helium neon laser?
Elza [17]

Answer:

632.8 nm is the wavelength (in air) of red light from a helium neon laser.

4 0
2 years ago
Other questions:
  • Determine the mechanical energy of this object: a 1-kg pendulum has a speed of 2 m/s ar a height of 1 meter.
    6·1 answer
  • True or false The Oort cloud is a large collection of comets that surrounds the solar system.
    7·1 answer
  • Only a fraction of the electrical energy supplied to a tungsten light bulb is converted to visible light. The rest of the energy
    8·1 answer
  • A 75-g bullet is fired from a rifle having a barrel 0.580 m long. Choose the origin to be at the location where the bullet begin
    12·1 answer
  • Suppose the radius of the Earth is given to be 6378.01 km. Express the circumference of the Earth in m with 5 significant figure
    12·1 answer
  • What is the diameter of the sun
    5·2 answers
  • A pendulum is made of a small sphere of mass 0.250 kg attached to a lightweight string 1.20 m in length. As the pendulum swings
    14·1 answer
  • A book that weighs 16N is on top of a shelf that is 3m high. What is the work required to
    12·1 answer
  • Which of these requirements must be met by two physical quantities when they are added together?
    15·1 answer
  • How much potential energy is gained by a 45kg woman climbing stairs 8.4 1 point<br> meters high?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!