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3 years ago

Https://phet.colorado.edu/sims/html/balloons-and-static-electricity/latest/balloons-and-static-electricity_en.html

Physics

1 answer:

Katarina [22]3 years ago

5 0

Answer:

there is not pic

Explanation:

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Use the balanced equation of a nitrogen cycle pathway below to support the conservation of matter and energy.

mojhsa [17]

Explanation :

Given equation

$N_{2} + 8H \rightarrow 2NH_{3} + H_{2}$

This equation is balanced. because the number of reactants is equal to the number of products.

According to conservation of matter and energy,

The conservation of matter and energy states that matter can not create and can not destroy but conserved. we can only change one form to another form of the matter and energy.

So, we can say energy conserved and the ,mass of the system always same over time.

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4 years ago

A ball is projected at an immovable wall with a speed vi and bounces back the wall in such a manner that it only has 1/3 of its

sergey [27]

The fraction of the kinetic energy of the ball lost during the collision is $\frac{1}{3}$ .

The given parameters;

<em>initial speed of the ball, = vi</em>
<em>final momentum of the ball, Pf = ¹/₃Pi</em>

The initial and final momentum of the ball is calculated as;

$P_i = m_ivi$

$P_f = m_fv_f = \frac{1}{3} m_iv_i$

The initial and final kinetic energy of the ball is calculated as;

$K.E_i = \frac{1}{2} m_iv_i^2 = \frac{1}{2} P_iv_i\\\\K.E_f = \frac{1}{2} m_fv_f^2= \frac{1}{2} (\frac{1}{3} P_iv_i)= \frac{1}{6} P_iv_i$

The change in the kinetic energy is calculated as;

$\Delta K.E = K.E_f - K.E_i \\\\\Delta K.E = \frac{1}{6} P_iv_i - \frac{1}{2} P_iv_i = \frac{1}{3} P_iv_i$

Thus, the fraction of the kinetic energy of the ball lost during the collision is $\frac{1}{3}$ .

Learn more here:brainly.com/question/18566218

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3 years ago

Where do the electrons that form the auroras enter the magnetosphere? a. Through holes c. At the equator b. Between the magnetic

marta [7]

I think the answer is d. In the magnetotail. I hope this helps! :)

7 0

4 years ago

Read 2 more answers

Scanned with CamScanner

baherus [9]

The answer is c to take a pictures with the camera in the metal hall

8 0

3 years ago

The velocity of a car increases from 2.0 m/s to 16 m/s in a time

Crazy boy [7]

Answer:

4.0 m/s

Explanation:

acceleration = (16-2) /3.5 = 4 m/s

3 0

3 years ago