3 years ago

Does the surface tension of water affect the rate of evaporation? If so, would adding a surfactant speed up evaporation?

1 answer:

6 0

Answer:

The evaporation time gradually increased with the increase in surfactant concentration, i.e., from water to the concentration level of 0.005%. Furthermore, the evaporation time is significantly reduced, even lower than that of water containing relatively high concentrations from 0.01% to 0.1%.

You might be interested in

Which term describes a possible explanation of, or answer to, a scientific question that is based on prior knowledge or research

suter [353]

I think it would be called a hypothesis.

3 0

3 years ago

Read 2 more answers

The GPE of a 70kg person standing on a chair 1m off the ground is how many joules?

Artemon [7]

GPE I am assuming is gravitational potential energy. I'll denote it as U for simplicity.

U = mgy
U = (70kg)(9.81m/s^2)(1m) = 686.7J

U = 686.7J

Hope this helps!

8 0

4 years ago

Spinning satellites are particularly stable. suppose that the astronauts launching a particular satellite decide to increase its

Crank

Supposing velocity is speed and direction, and momentum is mass*velocity, if the velocity increases by a factor of 5, then so should the momentum regardless of the whole space thing.

3 0

4 years ago

The mathematical symbol for period is O A. A O B. v OC. T O D. f

Advocard [28]

Answer: C. T

Explanation:

Period is a unit of time; and in the context of waves or oscillations it is defined as "the time elapsed between two equivalent points on the wave or oscillation".

It is important to note Period (denoted by $T$ ) is one of the most important factors (along with the amplitude, frequency and velocity) to describe and characterize a wave.

In addition, Period has an inverse relation with the frequency $f$ , this means that if we are given the frequency of a wave, we can inmediatly know its Period.

3 0

3 years ago

Determine the stiffness of the spring to hold the 85-kg crate in the position shown.

GalinKa [24]

Correct position spring hold it

5 0

4 years ago