What is the term for trade without barriers, tariffs, or quotas?

What is the strength of an electric field that will balance the weight of a 3.3 g plastic sphere that has been charged to -7.6 n

sp2606 [1]

As the plastic sphere is charged, therefore it experience an electric force when placed in an electric fields and also experiences gravitational force acts downward so the electric force must act upward.

Let $F_{E}$ is electric force and $F_{G}$ is gravitational force.

If these forces are balanced, therefore $F_{E} = F_{G}$

or $\left | q \right |E=mg\\\\\ E=\frac{mg}{\left | q \right |}$

Given, $q=-7.6 nC=-7.6\times10^{-9} C$ and $m=3.3 g= 3.3\times10^{-3} kg$ .

Substituting these values in above equation we get,

$E=\frac{3.3\times10^{-3} kg\times9.8 m/s^{2} }{7.6\times10^{-9} C}\\\\E=4.2\times10^{6} N/C$

Thus, the magnitude of electric field is $4.2\times10^{6} N/C$ .

As the charge is negative, the electric field at the location of the plastic sphere must be pointing downward.

8 0

3 years ago

A force of 58 newtons is applied to a crate at an angle of 32° with the horizontal. What is the value of force acting in the y–d

uysha [10]

That should be 58N * sin(32°) = 30.74N

4 0

4 years ago

As a woman carries her suitcase up a flight of stairs, she does work against

Rashid [163]

Answer:

C. 1176 J

Explanation:

12 x 9.8 x 10

Hope it helpss

4 0

3 years ago

The centrifugal force which tends to throw the electrons out it's orbit as stated with mass moving velocity in an orbit of radiu

sammy [17]

Answer:

In Motion in Two and Three Dimensions, we examined the basic concepts of circular motion. An object undergoing circular motion, like one of the race cars shown at the beginning of this chapter, must be accelerating because it is changing the direction of its velocity. We proved that this centrally directed acceleration, called centripetal acceleration, is given by the formula

\[{a}_{\text{c}}=\frac{{v}^{2}}{r}\]

3 0

3 years ago

Which of these is one way that mechanical waves differ from electromagnetic waves?

Andrew [12]

<span>Mechanical waves require a medium
and electromagnetic waves do not.</span>

6 0

3 years ago

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