Answer:
Answer in Explanation
Explanation:
Whenever we talk about the gravitational potential energy, it means the energy stored in a body due to its position in the gravitational field. Now, we know that in the gravitational field the work is only done when the body moves vertically. If the body moves horizontally on the same surface in the Earth's Gravitational Field, then the work done on the body is considered to be zero. Hence, the work done or the energy stored in the object while in the gravitational field is only possible if it moves vertically. This vertical distance is referred to as height. <u>This is the main reason why we require height in the P.E formula and calculations.</u>
The derivation of this formula is as follows:
Work = Force * Displacement
For gravitational potential energy:
Work = P.E
Force = Weight = mg
Displacement = Vertical Displacement = Height = h
Therefore,
P.E = mgh
0J
According to the law of conservation of energy, the potential energy is converted to kinetic energy. Remember, potential energy is calculated using height and weight. If the ball is on the ground, height is 0.
Answer:
K.E = 1.6 x 10⁻¹⁸ J
Explanation:
given,
thickness between two plate = t = 0.1 mm
Voltage difference between two plate = 10 V
charge of proton = q = 1.6 x 10⁻¹⁹ C
When the charge moves from positive to negative the potential energy reduces to kinetic energy
K.E = Δ PE
K.E = q Δ V
K.E = 1.6 x 10⁻¹⁹ x 10
K.E = 1.6 x 10⁻¹⁸ J
so, the kinetic energy of the proton when it reaches negative plate is equal to K.E = 1.6 x 10⁻¹⁸ J
Answer:The trail mix is a heterogeneous mixture.
Explanation: Heterogeneous mixture is a mixture of the same phase like sugar dissolved in water.
Trail mix involved physical objects, thus it is a mixture of peanuts, small fruits etc.