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3 years ago

8

Describe electric potential energy

1 answer:

nirvana33 [79]3 years ago

3 0

Is potential energy that results from conservative Coulomb forces and is associated with the configuration of a particular set of point charges within a defined system

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A study group is meeting to prepare for an upcoming social studies test on the Civil War. Which question would you

Rainbow [258]

Answer:

What were the most important reasons that the Civil War started?

Explanation: i got it correct

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3 years ago

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What a neurology professor does = _______ brains

Natasha_Volkova [10]

That’s really easy ask your teacher and also peace happy

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2 years ago

HELP ME PLEASE!!!!!!!!!

Stolb23 [73]

As per the given Figure attached here we know that both charges q1 and q2 will apply same force on charge q3 and hence the resultant force due to both charges will be along Y axis vertically upwards

So here we know that

$F = \frac{kq_1q_3}{d_{13}^2}$

now from the above equation

$F = \frac{(9\times 10^9)(2\times 10^{-6})(4 \times 10^{-6})}{0.5^2}$

$F = 0.288 N$

so both of the charges will apply 0.288 N force on q3 charge along the line joining them

now the net force due to vector sum is given by

$F_{net} = 2Fcos\theta$

here we know that angle is

$\theta = 37 degree$

now we have

$F_{net} = 2\times 0.288 cos37$

$F_{net} = 0.46 N$

so net force on q3 is 0.46 N vertically upwards along +Y axis

6 0

3 years ago

which of these chemical formulas represents two elements whose atoms have joined together with an ionic bond? A. O2 B. CaO C.NeN

cupoosta [38]

B: CaO
Because Calcium is a Metal and Oxygen is a Non-Metal. Ionic bonds are only formed with a Metal and a Non-Metal element.

3 0

3 years ago

On the earth, when an astronaut throws a 0.250 kg stone vertically upward, it returns to his hand a time T later. On planet X he

Igoryamba

Answer: $\frac{g}{2}$

Explanation:

Given

mass of stone $\left ( m\right )$ =0.250 kg

Let initial velocity with which it is thrown upward is u

therefore after time t it's velocity is zero at highest point

t= $\frac{u}{g}$

where g= gravity at earth

therefore $T=2\times \frac{u}{g}$ -------1

Now same thing is done in Planet X where gravity is g'

therefore time taken by stone to reach surface is

$T'=T=2\times \frac{u}{g'}$ -------2

Divide 1 & 2

$\frac{T}{T'}$ = $\frac{g'}{g}$

$\frac{1}{2}$ = $\frac{g'}{g}$

g'= $\frac{g}{2}$

8 0

3 years ago