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Dvinal [7]
3 years ago
9

A system consists of two charges,

Physics
1 answer:
svet-max [94.6K]3 years ago
6 0

Answer:

the force exerted on the charge 10 q have a magnitude that is greater than F

Explanation:

The relation between the force and the charge are direct proportionality, it implies that as the charges is increasing the forces will be increasing too

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A cyclist is coasting at 15 m/s when she starts down a 450 m long slope that is 30 m high. The cyclist and her bicycle have a co
Flura [38]

Answer:

Her speed at the bottom of the slope is 25.665 m/s

Explanation:

Here we have

Initial velocity, v₁= 15 m/s

Final velocity = v₂

The energy balance present in the system can be represented as

\frac{1}{2}mv_2^2 -\frac{1}{2}mv_1^2 - mgh = W

Where:

m = Mass of the cyclist = 70 kg

W = work done by the drag force = -F_Dd

Where:

d = Distance traveled = 450 m

Therefore,

\frac{1}{2}mv_2^2 -\frac{1}{2}mv_1^2 - mgh = -F_Dd and

v_2^2 =\frac{ \frac{1}{2}mv_1^2 + mgh  -F_Dd}{ \frac{1}{2}m}  = v_1^2 + 2gh -\frac{   2F_Dd}{ m} = 15^2 + 2\times 9.8\times 30 - \frac{2\times 12\times 450}{70}

= 658.714 m²/s²

v₂ = 25.665 m/s

Her speed at the bottom of the slope = 25.665 m/s.

6 0
3 years ago
The earth and the moon are attracted to each other by gravitational force. Does the earth attract the moon with a force that is
KengaRu [80]

Answer:

Gravitational attraction is caused by the mass of an object. Since Earth is far more massive than the Moon, the gravitational force exerted on the Moon is far greater than that of the Moon on the Earth. An example of the difference: while the Moon causes tides on the Earth, the Earth has the Moon locked so that the same face (minus some wobbling) is always visible from the Earth

Explanation:

5 0
2 years ago
Imagine that you are jumping rope, explains how these 3 types of energy would be present while doing so. (Chemical, Sound, Mecha
suter [353]

Answer:

Chemical you bodily functions while you are jumping

Sound you feet hitting the ground and the jump rope smacking the ground

Mechanical is you jumping up and down and the jump rope spinning a constant direction

Explanation:

5 0
3 years ago
While solving a problem, Tran calculates an answer that has coulomb-volts as the units.
Bess [88]

Apparently, the question is looking for A. electric potential energy;

but I don't think that's quite right. Electric potential difference is expressed in Joules / Coulomb which is the work to move a charge between 2 points

Example: If the electric field between, say, between 2 capacitor plates is

E = 100 Newtons / Coulomb then the work done in moving a unit of charge from the negative plate to the positive plate separted by 1 cm is

V = E * d = 100 Newtons / Coulomb * .01 meters = 1 Newton-meter / Coulomb

= 1 Joule / Coulomb    which is the electric potential or potential difference

(The definition of electric potential between points is "the work moving a unit positive test charge from one point to the other")

Now in our above example where V = 1 Joule / Coulomb

if we move 10 Coulombs from the negative plate to the positive plate

W = V Q  = 1 Joule / Coulomb * 10 Coulombs = 10 Joules

where work done has the correct units of Joules.

Your textbook should help clarify this.

4 0
3 years ago
How are the concepts of quantitative and qualitative related?
Alexeev081 [22]

Answer:

c) The concepts of quantitative and qualitative are not related at all.

Explanation:

Quantitative properties are those which can be compared by its magnitude only

so it is always in relative terms like we can compare them by which one is larger and which one is smaller

Qualitative terms are those which will compare the quality of two like which one is better in terms of given property

so here we can say that quantitative and qualitative terms is not comparable

hence correct answer will be

c) The concepts of quantitative and qualitative are not related at all.

4 0
2 years ago
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