Answer:
The speed is 
Explanation:
Electric field magnitude (E) and electric force magnitude (F) are related by the equation
with q the charge of the proton (
). Because between parallel plates electric field is almost constant, electric force is constant too:
because electric force is constant, then by Newton's second law acceleration (a) is constant too, it is:
with m the mass of the proton (
):
Now with this constant acceleration we can use the kinematic equation
with v the final speed, 
the initial velocity that is zero (because proton starts at rest) and d is the distance between the plates, so:
Answer:
E ) The horizontal component of a projectile acceleration is zero.
Explanation:
In case of a projectile , force of gravity acts in vertically downward direction so acceleration will act in vertically downward direction . Its direction never changes during course of its journey. So horizontal component of acceleration will always be zero at all points of its journey.
Newton's First Law states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force.
It would be 12,000 because newton’s third 2nd law states F=ma (force=matter x acceleration) so 30x400 would be your force .
please mark brainliest and i hope this helps!
As you mentioned, we will use <span>Equipartition Theorem.
</span><span>H2 has 5 degrees of freedom; 3 translations and 2 rotation
</span>Therefore:
Internal energy = (5/2) nRT
You just substitute in the equation with the values of R and T and calculate the internal energy as follows:
Internal energy = (5/2) x 2 x <span>8.314 x 308 = 32.0089 x 10^3 J</span>
