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Afina-wow [57]
3 years ago
6

Two point charges are placed on the x axis as follows: charge q1=+3.75nc is located at x=0.205m and charge q2=−5.60 nc is at x=+

0.400 m. what is the magnitude of the net force exerted by these two charges on a third point charge q3=−0.610nc placed at the origin?

Physics
1 answer:
Mademuasel [1]3 years ago
6 0
I might have did mistake with calculations but this is how you should do.

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Countries longer day for example in the Middle East could benefit more but Alaska has more night like longer night which is why it would hard to benefit from the solar panels there.

Hoped this helped
5 0
3 years ago
Can someone help me figure this out please?
Elina [12.6K]

Answer:

2/B

6/E

7/F

12/6

Explanation:

Hope this helps i dont know ither i will put if i think of them

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valentinak56 [21]

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3 years ago
A skier moves down a 12° slope at constant speed what can you say about the coefficient of friction assume the speed is low enou
BARSIC [14]

The coefficient of friction is 0.213

Explanation:

We start by writing the equation of the forces along the directions parallel and perpendicular to the incline. We have:

Perpendicular direction:

N-mg cos \theta =0 (1)

where

N is the normal reaction of the plane

mg cos \theta is the component of the weight perpendicular to the plane, with

m is the mass

g = 9.8 m/s^2 the acceleration of gravity

\theta=12^{\circ}  is the angle of the incline

Parallel direction:

mg sin \theta - \mu_k N = ma (2)

where :

mg sin \theta is the component of the weight parallel to the slope

\mu_k N is the force of friction, where

\mu_k is the coefficient of friction

N is the normal reaction  

a is the acceleration

In this case, the skier is moving at constant speed, so its acceleration is zero and the equation becomes:

mg sin \theta - \mu_k N =0 (2)

From (1) we find

N=mg cos \theta

And substituting into (2)

mg sin \theta - \mu_k mg cos \theta = 0

Solving for \mu_k,

\mu_k = tan \theta = tan(12)=0.213

Learn more about slope and force of friction here:

brainly.com/question/5884009

#LearnwithBrainly

8 0
3 years ago
3. Study the position-time graph for a bicycle. Which statement is supported by the graph?
Ilya [14]

Answer:

D. The bicycle has no motion.

Explanation:

The graph represents the position of the bike versus time.

From the graph, we see that the position of the bike is constant, at 3 metres  from the reference point, for the whole time: this means that the bike is not moving, so the correct option is

D. The bicycle has no motion.

From a position vs time graph, it is also possible to infer the velocity of the object, which is equal to the slope of the graph: in this case, the line is horizontal, so the slope is zero, which means that the bike's velocity is also zero.

4 0
2 years ago
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