Which device provides electrical energy to run an electric circuit

velikii [3]

Answer:

zirconium

Explanation:

in a liquid, the distance between particles is usually greater than in a solid (with the notable exception of water). Nevertheless, the forces of attraction between particles make liquids, like solids, virtually incompressible. However, the freedom of movement of the particles of liquids is greater than that of the particles of solids.

3 0

3 years ago

An ant crawls in a straight line at a constant speed of 0.24 m/s for a distance of 3.0 m, beginning in the corner of a square cl

Talja [164]

Answer:

vavg = 0.37 m/s

Explanation:

The average speed is just the relationship between the total distance traveled, and the total time required for that travel , as follows:

$v_{avg} = \frac{\Delta x}{\Delta t} (1)$

We know that for the first leg of the journey, the ant crawls at a constant speed of 0.24 m/s, moving 3.0 m.
We can find the time required for this part, just applying the definition of average velocity, and solving for the time t (which we will call t₁), as follows:

$t_{1} =\frac{x_{1}}{v_{1} } = \frac{3.0m}{0.24m/s} = 12.5 s (2)$

From the givens, we know that the time for the second part is exactly the half of the value found in (2), so we can write the total time Δt as follows:

$\Delta t = t_{1} + \frac{t_{1} }{2} = 12.5 s + 6.25 s = 18.75 s (3)$

We also know that in the second leg of the journey, the ant traveled 4.0 m, which adds to the 3.0 m of the first part, making a total distance of 7.0 m.
Per definition of average speed, we can write the following expression as in (1) replacing Δx and Δt by their values, as follows:

$v_{avg} = \frac{\Delta x}{\Delta t} = \frac{7.0m}{18.75m} = 0.37 m/s (4)$