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2 years ago

Which actions are essential to active participation? Check all that apply.

Physics

2 answers:

erastova [34]2 years ago

8 0

Answer:

2, 3, 4, 6.

Explanation:

inn [45]2 years ago

4 0

2, 3, 5, 6. That’s what I think‍♀️

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A negative ion is (larger/smaller) than its parent atom

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Its larger and if u where wondering to positive ions are smaller

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3 years ago

A sliver cylindrical rod has a length of 0.5 m and a radius of 0.4 m, find the density of the rod if it's mass is 2.640 kg

Serga [27]

Answer:

Density=10.50kg/m³

Explanation:

$Solution,\\Height(h)=0.5m\\Radius(r)=0.4m\\Now, \\Volume=\pi r^{2} h\\\\Volume=\pi *(0.4m)^{2} *0.5m\\\\Volume=0.251327m^{3} \\\\Again,\\\\Density=\frac{mass}{volume} \\\\Density=\frac{2.640kg}{0.251327} \\\\Density=10.50kg/m^{3}$

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2 years ago

State coulombs law in word

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<h2>state coulombs law in word</h2>

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2 years ago

According to Newton's 3rd law of motion, an action creates _____.

miv72 [106K]

C.an equal and opposite reaction

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3 years ago

Read 2 more answers

Find the unit vector in the direction of vector B=4i+2j-5k

solmaris [256]

Answer:

$\frac{4}{\sqrt{45} } i\,+\frac{2}{\sqrt{45} } j-\frac{5}{\sqrt{45} } k$

Explanation:

for the unit vector, we need to divide the given vector by its norm, because it should be in the SAME direction as the original vector, but of magnitude "1".

We notice that the norm of the given vector is:

$\sqrt{4^2+2^2+(-5)^2} =\sqrt{45}$

Then, the unit vector becomes:

$\frac{4}{\sqrt{45} } i\,+\frac{2}{\sqrt{45} } j-\frac{5}{\sqrt{45} } k$

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2 years ago