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4 years ago

Direct current is the flow of an electric charge?

1 answer:

3 0

Direct current is the unidirectional flow of an electric charge.

The term 'unidirectional' in the statement means that direct current only moves in one direction. Direct current usually produced by things such as batteries, dynamos, and power supplies

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You might be interested in

I need help in Physiology!!!!!!

Alisiya [41]

Perception is the sensory experience of the world. It involves both recognizing environmental stimuli and actions in response to these stimuli. Through the perceptual process, we gain information about the properties and elements of the environment that are critical to our survival.

5 0

2 years ago

A German Shepherd takes 4 hours to cover a distance, if it travels at a speed of 36mph. What should be its speed to cover the sa

agasfer [191]

Answer:

v₂ = 48 mph

Explanation:

We know that,

Speed = distance/time

A German Shepherd takes 4 hours to cover a distance, if it travels at a speed of 36mph.

We need to find the speed to cover the same distance in 3 hours.

$\dfrac{v_1}{v_2}=\dfrac{t_2}{t_1}\\\\v_2=\dfrac{v_1t_1}{t_2}\\\\v_2=\dfrac{36\times 4}{3}\\\\v_2=48\ mph$

So, the new speed is 48 mph.

3 0

3 years ago

An athlete is running a 400m race around a 400m track. On the backstretch the athlete's velocity is 8m/s but he is running into

Aleksandr-060686 [28]

Answer:

33 N

Explanation:

v = Velocity of fluid = 8+2 = 10 m/s

$\rho$ = Density of fluid = 1.2 kg/m³

C = Coefficient of drag = 1.1

A = Cross sectional area = 0.5 m²

Drag force is given by

$F=\frac{1}{2}\rho CAv^2\\\Rightarrow F=\frac{1}{2}\times 1.2\times 1.1\times 0.5\times (8+2)^2\\\Rightarrow F=33\ N$

The drag force on the athlete is 33 N

3 0

3 years ago

A force of 30 N is required to hold a spring that has been stretched from its natural length of 20 cm to a length of 35 cm. How

docker41 [41]

Answer:

0.25 J

Explanation:

Given that

Force on the spring, F = 30 N

Natural length of the spring, l1 = 20 cm = 0.2 m

Final length of the spring, l2 = 35 cm = 0.35 m

Extension of the spring, x = 0.35 - 0.2 = 0.15 m

The other extension is 40 - 35 cm = 5 cm = 0.05 m

Work done = ?

Considering Hooke's Law of Elasticity.

We're told that the spring stretches through 15 cm, and thereafter asked to find the work done in stretching it through 5 cm

The question is solved in the attachment below

4 0

3 years ago

Meteorologists are interested in the relationship between minimum pressure and maximum wind speed

pogonyaev

Meteorologists are curious about the association between hurricane minimum pressure and maximum wind speed.

<h3>Who is meteorologist?</h3>

A meteorologist is one who studies and works in the discipline of meteorology with the goal of understandings weather.

Meteorologists are curious about the association between hurricane minimum pressure and maximum wind speed.

From 1995 through 2012, the lowest pressure in millibars and maximum wind speed in knots were gathered for a random sample of 100 storms.

Hence,meteorologists are curious about the association between hurricane minimum pressure and maximum wind speed.

To learn more about the meteorologist, refer:

brainly.com/question/5145125

#SPJ4

7 0

2 years ago