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Sedbober [7]
2 years ago
11

In alternating current, how often does the current alternate between negative and positive?

Engineering
2 answers:
Scorpion4ik [409]2 years ago
8 0
In an alternating current (AC) circuit the two poles alternate between negative and positive and the direction of the current (electron flow) reverses periodically.
Novay_Z [31]2 years ago
7 0

Answer:

AC voltages alternate/cycle, at a rate of 60 times each second.

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1. Discuss the benefits of observing good safety measures in relation to an increase in
Aneli [31]

The benefits of observing good safety measures in relation to an increase in productivity within a pharmaceutical laboratory is that the act of adhering to all these policies helps a lot of employees to hinder the  spills of chemicals and other kinds of  accidents, as well as reduce the damage to the environment that is outside of the lab.

<h3>What are the benefits of practicing safety in the laboratory?</h3>

A laboratory is known to be one that is known to have a lot of potential risks that is said to often arise due to  a person's exposure to chemicals that are corrosive and toxic, flammable solvents, high pressure gases and others.

Therefore,  A little care and working in line to all the prescribed safety guidelines will help a person to be able to avoid laboratory mishaps.

Therefore, The benefits of observing good safety measures in relation to an increase in productivity within a pharmaceutical laboratory is that the act of adhering to all these policies helps a lot of employees to hinder the  spills of chemicals and other kinds of  accidents, as well as reduce the damage to the environment that is outside of the lab.

Learn more about safety measures  from

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8 0
2 years ago
"geophysical exploration definition"​
Strike441 [17]

Answer:

Exploration geophysics is an applied branch of geophysics and economic geology, which uses physical methods, such as seismic, gravitational, magnetic, electrical and electromagnetic at the surface of the Earth to measure the physical properties of the subsurface, along with the anomalies in those properties

7 0
3 years ago
Read 2 more answers
A diagonal aluminum alloy tension rod of diameter d and initial length l is used in a rectangular frame to prevent collapse. The
Ksenya-84 [330]

Answer:

\Delta L = 0.1883 inch

Explanation:

Given data:

d = 0.5 inch

L_i = 8 ft

\sigma_{allow} = 20  kpsi

we know that change in length is given as

\Delta L = \frac{PL}{AE}

              = \frac{P}{A}\times \frac{L}{E}

              = \sigma_{allow} \times \frac{L}{E}

modulus of elasticity E for aluminium alloy is 10.2 \times 10^6 psi = 10.2 \times 10^3 kpsi

\Delta L = \frac{20 \times 8}{10.2\times 10^3}

\Delta L = 0.01569 ft

\Delta L = 0.1883 inch

6 0
3 years ago
What plane is this? i want the model
myrzilka [38]

Answer:

I think that plane's name is

KLM ....Because you can see the mysterious Leter in the plane's

Forward and the back of the plane

4 0
2 years ago
E total kinetic energy of a 2500 lbm car when it is moving at 80 mph (in BTU)?
Galina-37 [17]

Answer:

KE= 687.21 BTU

Explanation:

Given that

Mass of car = 2500 lbm

We know that 1 lb=0.45 kg

So the mass of car  m =1133.98 kg

Velocity of car= 80 mph

We know that 1 mph =0.44 m/s

So velocity of car = 35.76 m/s

As we know that kinetic energy (KE) is given as follows

KE=\dfrac{1}{2}mv^2

Now by putting the values

KE=\dfrac{1}{2}\times 1133.98\times 35.76^2

KE=725.05 KJ

We know that   1 KJ = 0.94 BTU

So  KE= 687.21 BTU

3 0
4 years ago
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