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gladu [14]
3 years ago
6

An object that is not accelerating or decelerating has zero net force acting on it. Choose 1 answer: Choose 1 answer: A True B F

alse
Physics
2 answers:
Pavel [41]3 years ago
7 0
That is True. The reason for that is because of Newton's Second Law. Where Force = Mass x Acceleration. If the acceleration or deceleration is zero, then the entire equation equals to zero. Meaning that the total net force that is acting on the object is zero.
Bumek [7]3 years ago
3 0
Hey there,

Answer:

A, True

Hope this helps :D

<em>~Top</em>
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(a) Calculate the buoyant force on a 2.00-L helium balloon.
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Answer:

0.0239364 N

0.0057879 N

Explanation:

\rho = Density of the gas

g = Acceleration due to gravity = 9.81 m/s²

V = Volume

Mass of rubber = 1.5 g

Buoyant force is given by

F_b=\rho gV\\\Rightarrow F_b=1.22\times 9.81\times 2\times 10^{-3}\\\Rightarrow F_b=0.0239364\ N

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Net vertical force is given by

F_n=F_b-W_{He}-W_{r}\\\Rightarrow F_n=0.0239364-0.175\times 2\times 10^{-3}\times 9.81-1.5\times 10^{-3}\times 9.81\\\Rightarrow F_n=0.0057879\ N

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6 0
3 years ago
Why does the mass spectrum of Br2 contain three signals whose heights are almost in the ratio of 1:2:1? What are the origins of
Eddi Din [679]
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3 years ago
80N force ;
lutik1710 [3]

The power of the engine is 320 W.

<u>Explanation:</u>

Power may be defined as the rate of doing work (or) work done per unit time. One unit of energy is used to do the one unit of work.

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Given, Force = 80 N,    height = 5 m , final velocity = 4 m/s

To calculate the power, we must know the time taken.

To find the time, use the distance and speed formula which is given by

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Here distance = 5 m and speed = 4 m/s

                              Time = 5 / 4 = 1.25 s.

Now,          Power = work done / time

                              = (F * d) / t  = (80 * 5) / 1.25

                  Power = 320 W.

The standard unit of power is watt (W) which is joule per second.

                                                               

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Answer:

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Explanation:

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