3 years ago

I need help With this

Physics

1 answer:

Helen [10]3 years ago

8 0

Answer:

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Explanation:

fvgbnhjmk

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A small boat is moving at a velocity of 1.93 m/s when it is accelerated by a river current perpendicular to the initial directio

olasank [31]

Answer:

16.405m/s

Explanation:

Given, initial velocity = u = 1.93m/s, acceleration = a = 0.750m/s2, time = t = 19.3s, final velocity = v= ?

Using the first equation of linear motion,

v = u + at

v = 1.93 + 0.750 x 19.3

v = 1.93 + 14.475

v = 16.405m/s

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3 years ago

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A bullet is fired at an angle θ above the horizontal with an initial velocity of 800 m/s from the top of an 80 m high tower. Wha

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Answer:

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3 years ago

What term best describes the regular path of a spacecraft or other object around a planetary body?

Law Incorporation [45]

B. Orbit. The planets orbit the sun, the moon orbits earth, etc.

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3 years ago

Two point charges exert a 7.35 N force on each other. What will the force become if the distance between them is increased by a

I am Lyosha [343]

Answer :

New force becomes, F' = 1.83 N

Explanation:

Let two point charges exert a force of 7.35 N force on each other. The electric force between two charges is given by :

$F=\dfrac{kq_1q_2}{r^2}$

$q_1\ and\ q_2$ are charges

r is the distance between charges if the distance between them is increased by a factor of 2, r' = 2r

New force is given by :

$F'=\dfrac{kq^2}{r'^2}$

$F'=\dfrac{kq^2}{(2r)^2}$

$F'=\dfrac{1}{4}\dfrac{kq^2}{r^2}$

$F'=\dfrac{1}{4}\times 7.35$

F' = 1.83 N

So, the new force between charges will be 1.83 N. Therefore, this is the required solution.

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3 years ago

300 watts of power is produced over 15 seconds. How much work was done transferring the power?

butalik [34]

Answer:

4500

Explanation:

Formula: power x time

300 x 15 = 4500

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3 years ago