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3 years ago

What’s the equalibrium rule?

Physics

2 answers:

Hoochie [10]3 years ago

7 0

The 50 N force is not equal to the 30 N force. If an object is at equilibrium, then the forces are balanced. Balanced is the key word that is used to describeequilibrium situations. Thus, the net force is zero and the acceleration is 0 m/s/s.

ale4655 [162]3 years ago

4 0

The vector sum of forces acting on a non-accelerating object equals zero.
equation form: ΣF = 0

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3 years ago

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FrozenT [24]

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3 years ago

The activity of a radioisotope is found to decrease 40% of its original value in 2.59 x 10 s.

Rainbow [258]

Answer: $0.0353\ s^{-1}$

Explanation:

Given

Radioactive material is found to decrease 40% of its original value in $2.59\times 10\ s$

Sample at any time is given by

$N=N_oe^{-\lambda t}$

where, $\lambda=\text{decay constant}$

Put values

$\Rightarrow 0.4N_o=N_oe^{-\lambda\cdot 2.59\times 10}\\\Rightarrow 0.4=e^{-\lambda\cdot 2.59\times 10$

Taking natural logarithm both side

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3 years ago

A proton traveling to the right enters a region of uniform magnetic field that points into the page.When the proton enters this

neonofarm [45]

Answer:

Explanation:

We can answer this problem by using Fleming's Left Hand Rule. By doing so, we have to place:

- The index finger of the left hand in the direction of the magnetic field

- The middle finger of the left hand in the direction of the particle's velocity

- The thumb will give the direction of the force, and therefore the deflection of the proton

In this problem, we have:

- Magnetic field direction: into the page --> index finger

- Proton's velocity: to the right --> middle finger

By doing so, we observe that the thumb points towards the top of the page: therefore, the correct answer is

(C) deflected toward the top of the page.

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3 years ago