Suppose a logs mass was 5kg. After burning, the mass of the ash is 1 kg. Explain what may have happened to the other 4kg?

1 answer:

4 0

Well, we know that mass is conserved, so the missing 4 kg couldn't
just disappear. It had to go somewhere.

It may have left the burning log in the form of hot gases and smoke particles.

You might be interested in

Sound source A is located at x = 0, y = 0, and sound source B is located at x = 0, y = 2.3 m. The two sources radiate coherently

Oliga [24]

Answer:

Solution is given in the attachments

4 0

2 years ago

An electron is ejected from the cathode by a photon with an energy slightly greater than the work function of the cathode. How w

Ksivusya [100]

It will be approximately equal.

<h3>How will the final kinetic energy change?</h3>

We can infer that all of the energy in the electron is Potential energy (PE) because the energy provided by the photon is hardly enough to outweigh the work function.

It will gain kinetic energy (KE) as it advances in the direction of the anode because it is moving through an electric field. All of the PE will have been transformed to KE by the time it reaches the anode.

According to the question

K = hf - W

W = Work function

The energy of photons is comparable. After conversion, there was only a little amount of KE remaining.

Therefore, PE (W) essentially equals KE (K).

It will about be equal.

Learn more about work function here:

brainly.com/question/19595244

#SPJ4

3 0

2 years ago

A long, straight metal rod has a radius of 5.75 cm and a charge per unit length of 33.3 nC/m. Find the electric field at the fol