Answer:
number protons and force are Q = 1,472 10⁻¹⁷ C F = 3,656 10⁻⁸ N
Explanation:
Atoms are neutral whereby the number of electrons in the atom is compensated by an equal number of positively charged protons in the nucleus, so there are 92 protons, the total charge can be found by a rule of proportions
Q = # proton * 1.6 10⁻¹⁹C
Q = 92 * 1.6 10⁻¹⁹
Q = 1,472 10⁻¹⁷ C
To calculate the force of an electron we use Coulomb's law
F = k q1 Q / r²
F = k e Q / r²
The Coulomb constante is 8.99 10⁹ N m² /C²
F = 8.99 10⁹ 1.6 10⁻¹⁹ 1,472 10⁻¹⁷ / (7.61 10⁻¹⁰)²
F = 3,656 10⁻⁸ N
This force is attractive.
Missy's velocity is 24.5 m/s
Explanation:
The kinetic energy of an object is the energy possessed by the object due to its motion. Mathematically, it is given by
where
m is the mass of the object
v is its velocity
In this problem, we know:
K = 15000 J is Missy's kinetic energy
m = 50 kg is her mass
Solving for v, we find her velocity:
Learn more about kinetic energy:
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Answer:. The acceleration of the object is directly proportional to the force and inversely proportional to the mass.
Explanation:
According to Newton s Second Law of Motion, also known as the Law of Force and Acceleration, a force upon an object causes it to accelerate according to the formula net force = mass x acceleration.
Wait like the equations, or is there an actual question?
Equations are
Final velocity (Vf) = Initial velocity (Vi) + Acceleration (a) x Time (t)
Acceleration (a) = (Final velocity [Vf] - initial velocity [Vi]) divided by Time (t)
Force (f) = Mass (m) x Acceleration (a)
(Short version)
Vf = Vi + a(t)
a = (Vf - Vi) divided by t
F = m x a
Answer:
Option C
Explanation:
given,
velocity of airplane = 80 m/s
angle with the horizontal = 15°
speed of the ground= ?
when the plane is taking off the horizontal component of the velocity is v cosθ
so,
ground speed of the airplane is =
=
v = 77.27 m/s
horizontal velocity of the air plane comes out to be 77.27 m/s ≅ 77 m/s
so, the correct option is Option C