Answer:
Insufficient data.
Explanation:
Hi!
The data you have is only potential diference, so you know that the variation in potential energy of the electron when moving from -1.5V to 3.0V, is 4.5 V.
But you cannot know the acceleration. For that you need to know the electric field, so you can calculate force.
Answer:
44.4 m/s
Explanation:
d = 80 m, t = 1.8 s, find v
d = v*t
v = d/t = 80/1.8 = 44.4 m/s
Answer:
0.31%
Explanation:
The acceleration due to gravity at sea level is:
g = GM / R²
where G is the gravitational constant, M is the mass of Earth, and R is the radius of the Earth.
The acceleration due to gravity a height h above sea level is:
g' = GM / (R+h)²
The percent variation is:
(g − g') / g
= 1 − g'/g
= 1 − [GM / (R+h)²] / [GM / R²]
= 1 − R² / (R+h)²
= 1 − (R / (R+h))²
The average radius of the Earth is 6370 km. The height of the balloon is 10 km.
1 − (6370 / (6370 + 10))²
0.0031
0.31%
Ans: Kinetic and potential energies are found in all objects. If an object is moving, it is said to have kinetic energy (KE). Potential energy (PE) is energy that is "stored" because of the position and/or arrangement of the object. The classic example of potential energy is to pick up a brick.
Energy stored in a capacitor is Electric Potential Energy. Capacitor is device used for storing energy. The work done to charge is a capacitor is stored in it in the form of Electrical potential energy. Electrical potential energy is defined as capacity to do work due to the position change. For example, we know fans have capacitor installed in it. When we turn off the fan, it continue moving using the electrical energy stored in the capacitor.
