3 years ago

For a complete vector quantity, what information needs to be given?

Physics

1 answer:

zhenek [66]3 years ago

4 0

The magnitude of the quantity and its direction.

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The barrel of a rifle has a length of 0.89 m. A bullet leaves the muzzle of a rifle with a speed of 620 m/s. What is the acceler

guapka [62]

Answer:

215955.06 m/s^2

Explanation:

length of barrel, s = 0.89 m

initial velocity of the bullet, u = 0 m/s

Final velocity of the bullet, v = 620 m/s

Let a be the acceleration of the bullet in the barrel

Use third equation of motion, we get

$v^{2}=u^{2}+ 2as$

$620^{2}=0^{2}+ 2\times a \times 0.89$

a = 215955.06 m/s^2

Thus, the acceleration of the bullet inside the barrel is 215955.06 m/s^2.

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trapecia [35]

Answer:

300

Explanation:

15x20

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Two parallel metal plates are at a distance of 8.00 m apart.The electric field between the plates is uniform directed towards th

yuradex [85]

Answer:

Explanation:

Formula E=F/C also E=V/d

In this case use the second formula; E=V/d

Data given; E=4N/C d=8m

So v=E X d

V=4x8=32V

k.e=eV= 2X32=64eV

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4 years ago

(b)

Leona [35]

Answer:

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Explanation:

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2 years ago

Which of the following is a derived unit? ampere newton second kilogram

Soloha48 [4]

Newton is your answer.

ampere, second, kilograms, are all base units.

hope this helps

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3 years ago