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3 years ago

8

A

1 answer:

kotegsom [21]3 years ago

3 0

Answer:

conservative

Explanation:

Nonconservative force is the force that depends on a path, however conservative does not depend on a path and it is not associated with the potential energy. When the work is done by an unconservative force, mechanical energy is added or removed. Friction is the best example for a non-conservative force. When these non-conservative forces are acting, the mechanical energy changes but these are not preserved.

hope this helped!

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A proton is accelerated from rest through a potential difference V0 and gains a speed v0. If it were accelerated instead through

Svet_ta [14]

Answer:

The speed is $\sqrt{2}v_{0}$ .

(a) is correct option.

Explanation:

Given that,

Potential difference $V= V_{0}$

Speed $v = v_{o}$

If it were accelerated instead

Potential difference $V'=2V_{0}$

We need to calculate the speed

Using formula of initial work done on proton

$W = q V$

We know that,

$\Delta W=\Delta K.E$

$q V=\dfrac{1}{2}mv^2$

Put the value into the formula

$q V_{0}=\dfrac{1}{2}mv_{0}^2$

$v_{0}^2=\dfrac{2qV_{0}}{m}$ ....(I)

If it were accelerated instead through a potential difference of $2 V_{0}$ , then it would gain a speed will be given as :

Using an above formula,

$v_{0}'^2=\dfrac{2qV_{0}}{m}$

Put the value of $V_{0}$

$v_{0}'^2=\dfrac{2q\times2V_{0}}{m}$

$v_{0}'=\sqrt{\dfrac{4qV_{0}}{m}}$

$v_{0}'=\sqrt{2}v_{0}$

Hence, The speed is $\sqrt{2}v_{0}$ .

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3 years ago

When an element tends to lose its valence electrons in chemical reactions, it behaves more like a _______ . When an element tend

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the answers are

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4 years ago

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7. At room temperature, a substance with a melting

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Answer:

<em>The answer is Solid</em>

Explanation:

<em>Hope this helps!</em>

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3 years ago

Were there experiences in his life that led to his interest in science and the study of the atom?

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Answer:

The right answer is Democritus

Explanation:

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2 years ago

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A motorboat embarks on a trip, heading downstream in a river in which the current flows at a rate of 1.5m/s. After 30.0 minutes,

Natali5045456 [20]

Answer:

$t=2413s$

Explanation:

From the question we are told that:

Velocity $v=1.5m/s$

Time $t=30min=>30*60=>1800$

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Generally the Newton's equation for Speed going down the stream is mathematically given by

$v + u = \frac{d}{t}$

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Therefore

$v + u = \frac{d}{t}$

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3 0

3 years ago