Which of the following BEST explains the energy transformation that takes place when a battery alarm clock goes off.

Physics

1 answer:

zubka84 [21]4 years ago

7 0

I think it might be Either A or B im thinking B

You might be interested in

the atmospheric temperature decreases when snow starts melting because the snow releases thermal energy from the atmosphere to m

sergeinik [125]

No its false
Snow absorbs the thermal energy

4 0

3 years ago

Read 2 more answers

A solid block of mass m is suspended in a liquid by a thread. The density of the block is greater than that of the liquid. Initi

Tanzania [10]

Answer:

The tension T at equilibrium will be equal to the Buoyant force.

The Buoyant force is given by:

Fb = density x acceleration due to gravity x volume displaced

The change in height doesn't affect the Buoyant force and hence the tension.

Note: The figure of question is added in the attachment

3 0

3 years ago

For a process at constant pressure, 12,400 calories of heat are released. this quantity of heat is equivalent to

Vinvika [58]

Answer:

51,882 J

Explanation:

In order to convert the heat from calories to joule, we must remember the conversion factor:

1 cal = 4.184 J

Keeping in mind this, we can set up a proportion to find how much Joules correspond to 12,400 calories:

$1 cal : 4.184 J = 12,400 cal : x\\x=\frac{(4.184 J)(12400 cal)}{1 cal}=51,882 J$

6 0

3 years ago

How many times hotter than the sun surface is the surface of a star the same size but gives off twice the amount of energy per s

Mila [183]

The effective temperature of a star is relative to the fourth root of the luminosity and is contrariwise proportional to the square root of the radius.

L = k R² T⁴

If the radius remains continuous, while the luminosity doubles, the temperature must increase by a factor of the fourth root of two.

If L → 2L, then T → 1.189207115 T

So the answer is approximately 1.19 times.

8 0

3 years ago

Which piece of evidence did Alfred Wegener use to develop the theory of continental drift?

Eduardwww [97]

The right answer for the question that is being asked and shown above is that: "A.tectonic activity concentrated in certain areas." A piece of evidence did Alfred Wegener use to develop the theory of continental drift is that <span>A.tectonic activity concentrated in certain areas</span>

3 0

3 years ago