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3 years ago

Which answer best describes the flow of electrical charge?

2 answers:

8 0

<span>So we want to know which answer best describes the flow of electric charge. So the flow of electric charge is when the charge is moving from a higher potential energy to a lower potential energy which would be analogous to the rock rolling down hill. So first answer is correct. </span>

marishachu [46]3 years ago

8 0

Answer : Option A) Higher potential to lower potential.

Explanation : An electric current can be defined as a flow of electric charge. In electric circuits this charge is often carried by moving electrons in a wire which are in opposite direction of current. The charge is often flowing from the higher potential to lower potential energy.

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A portable basketball set has a base and a post arrangement. The post arrangement consists of a post, backboard, hoop and net. T

Ray Of Light [21]

The rotational equilibrium condition allows finding the response to the minimum force of the wind and what happens when changing the water for sand, in the system

a) The minimum force of the wind that turns the system is Fw = 17.64 N

b) The system resists much greater forces because the base has more mass

Newton's Second Law can be applied to rotational motion in this case when the angular acceleration is zero we have the special case of rotational equilibrium

Σ τ = 0

Where τ is the torque

The reference system is a coordinate system with respect to which the torques are measured, in this case we will fix the system at the turning point, the junction of the base and the pole, we will assume that the counterclockwise rotations are positive.

For the torque the distance used is the perpendicular distance from the direction of the force to the axis of rotation, let's find this distance for each force

Wind force

cos 15 = $\frac{y_w}{2.35}$

$y_w$ = 2.35 cos 15

Post Weight

sin 15 = $\frac{x_p}{2.00}$

xp = 2.0 sin 15

Base weight

cos (90-15) = $\frac{x_b}{0.25}$

xB = 0.25 cos 75

Let's substitute in the rotational equilibrium equation

$F_w \ y_w + W_p \ x_p - W_b \ x_b = 0$

a) To calculate the minimum wind force we substitute the given values

They indicate the weight of the post is $W_p$ = 26.0 N and the weight of the base with water is $W_b$ = 810 N

$F_w = \frac{W_b \ x_b - W_p \ x_p }{y_w}$

$F_w = \frac{W_b \ 0.25 cos75 \ - W_p \ 2 sin 15}{2.35 cos 15}$

Let's calculate

$F_w = \frac{810 \ 0.25 \ cos75 \ - 26.0 \ 2 \ sin 15}{2.35 cos15}\\F_w = \frac{52.41 - 10.30}{2.3699}$

$F_w$ = 17.64 N

b) The water is exchanged for sand.

In this case, as the density of the sand is greater than that of the water, the base will have more weight, so it will resist stronger winds before turning over.

Using the rotational equilibrium condition we can find the response to the minimum force of the wind and what happens when changing the water for sand,

a) the minimum force of the wind that turns the system is Fw = 17.64 N

b) the system resists much greater forces because the base has more mass

Learn more here: brainly.com/question/7031958

3 0

3 years ago

Explain how the magnitude of the gravitational force between the earth and the sun changes as the earth moves from position 'A'

Lina20 [59]

Answer:

Explanation:

We are not told where A and B are, but I'll assume that they are two points on the orbit of earth about the sun.

As that orbit is an ellipse, the two points likely do not have the same distance between the earth and sun.

As gravity varies with the inverse of the square of the distance (F = GMm/d²), the force at the closer distance will be greater than the force at the longer distance.

4 0

3 years ago

Rajani had bought a new bottle of pickle from the market. She tried to open the

dem82 [27]

Answer:

The pickle bottle cap on dipping it in hot water expanded.

Explanation: Hope it helps you:))))

Have a good day

4 0

2 years ago

An object is traveling at a constant velocity of 10m/s for 4 seconds. What is its acceleration?

saw5 [17]

Answer:

<h2>The answer is 2.5 m/s²</h2>

Explanation:

The acceleration of an object given it's velocity and time taken acting on it can be found by using the formula

$acceleration = \frac{velocity}{time} \\$

From the question

time = 4 s

velocity = 10 m/s

So we have

$acceleration = \frac{10}{4} = \frac{5}{2} \\$

We have the final answer as

Hope this helps you

5 0

4 years ago

Find the steady-state temperature distribution for the semi-infinite plate problem

jeka94

Answer:

Savage is the answer

Explanation: The savage people guess like me

6 0

3 years ago