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2 years ago

When the forward and reverse paths of a change occur at the same rate,

1 answer:

3 0

When the forward and reverse paths of a change occur at the same rate, "<span>B. the system is in equilibrium". This is because there is no net flow of reactants at this time. This stage can be reached quickly or after long periods of time.</span>

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The electron gun in a television tube accelerates electrons (mass = 9.11x10^-31 kg, charge = 1.6 x 10^-19C) from rest to 3 x10^7

stich3 [128]

Answer:

Electric field acting on the electron is 127500 N/C.

Explanation:

It is given that,

Mass of an electron, $m=9.11\times 10^{-31}\ kg$

Charge on electron, $q=1.6\times 10^{-19}\ C$

Initial speed of electron, u = 0

Final speed of electron, $v=3\times 10^7\ m/s$

Distance covered, s = 2 cm = 0.02 m

We need to find the electric field required. Firstly, we will find the acceleration of the electron from third equation of motion as :

$a=\dfrac{v^2-u^2}{2s}$

$a=\dfrac{(3\times 10^7)^2-0}{2\times 0.02}$

$a=2.25\times 10^{16}\ m/s^2$

According to Newton's law, force acting on the electron is given by :

F = ma

$F=9.1\times 10^{-31}\times 2.25\times 10^{16}$

$F=2.04\times 10^{-14}\ N$

Electric force is given by :

F = q E, E = electric field

$E=\dfrac{F}{q}$

$E=\dfrac{2.04\times 10^{-14}}{1.6\times 10^{-19}}$

E = 127500 N/C

So, the electric field is 127500 N/C. Hence, this is the required solution.

8 0

3 years ago

What disadvantage of convex mirror

Eddi Din [679]

Answer:

The disadvantage is that convex mirror is that they make it appear like those objects are at a more noteworthy distance than they actually are. It always gives a virtual, erect and a diminished image.

Explanation:

5 0

3 years ago

Assume the ground is uniformly level. If the horizontal component a projectile's velocity is doubled, but the vertical component

Katarina [22]

Answer:

Explanation:

Time of flight = 2 x u sinα / g where u sinα is vertical component of projectile's velocity u .

So Time of flight = 2 x vertical component / g

vertical component = constant

g is also constant so

Time of flight will also be constant .

It will remain unchanged .

3 0

3 years ago

How is a theory different from a hypothesis? How is a theory different from a hypothesis? 3 following 10 answers 10 Report Abuse

Fed [463]

A theory is an idea that is widely agreed on by scientists and can be changed when new info comes to light while a hypothesis is an educated guess sometimes based on prior knowledge.

4 0

2 years ago

A circuit breaker is tripped when the

SCORPION-xisa [38]

Answer:

P= 15A x 120 V P= 1800 W

I believe, I hope this helps

Explanation:

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2 years ago