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balandron [24]
2 years ago
15

n an object. one force is 3N to the east and the other force is 9n to the west. what is the net force acting on the object ​

Physics
1 answer:
cricket20 [7]2 years ago
4 0

Answer:

-6N

Explanation:

The force to the east is acting in the positive x-direction therefore it is positive. The force to the east is in the negative x-direction therefore it is negative. The net force is just the sum of the two so 3-9=-6

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4.0×10⁻¹⁷ N

Explanation:

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2 years ago
Two masses (5.3kg and 7.5kg) are fastened together with a small amount of explosive. They are loaded into a spring gun that is t
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Two planets, Dean and Sam, orbit the Sun. They each have with circular orbits, but orbit at different distances from the Sun. De
lyudmila [28]

Answer:

The correct answer is Dean has a period greater than San

Explanation:

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When applying this equation to our case, the planet with a greater orbit must have a greater period.

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3 0
3 years ago
A brave child decides to grab onto an already spinning merry‑go‑round. The child is initially at rest and has a mass of 34.5 kg.
rodikova [14]

Answer:

the moment of inertia of the merry go round is 38.04 kg.m²

Explanation:

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distance from the centre; r = 1.55 m

Now, let the moment of inertia of the merry go round be I.

Using the principle of conservation of angular momentum, we have;

I_1 = I_2

Thus,

Iω_1 = I'ω_2

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Thus,

I x 37 = ( I + mr²)19

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37I = 19I + 684.7125

37I - 19 I = 684.7125

18I = 684.7125

I = 684.7125/18

I = 38.04 kg.m²

Thus, the moment of inertia of the merry go round is 38.04 kg.m²

7 0
4 years ago
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Light travels 3,00,000km/s. ls it right velocity or speed?​
MrRa [10]

Answer:

speed

Explanation:

because speed is fast

6 0
3 years ago
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