Answer:
/ Em₀ = 0.30
Explanation:
In this exercise we use the relationship of mechanical energy, kinetic energy and gravitational potential energy
K = ½ m v²
U = mgh
We calculate the mechanical energy at two points
Initial. Lower
Em₀ = K = ½ m v²
Highest finish
= U = mg and
Let's calculate
Em₀ = ½ m 3.6 2
Em₀ = m 6.48
= m 9.8 0.20
= m 1.96
The fraction of lost energy is
/ Em₀ = m 1.96 / m 6.48
/ Em₀ = 0.30
30% sun is converted into potential energy
It has several transformation possibilities
It is transformed into thermal energy of air and spores, since this energy cannot be recovered
Explanation:
Weak nuclear force:
The interaction between the subatomic particles is called weak nuclear force.
The weak nuclear force is one of the four fundamental forces.
The weak nuclear force is effective at very short distance.
The range and relative strength of weak nuclear force is 10⁻¹⁸ m and 10²⁵ with respect to gravitational force respectively
Deuterium is formed due to the fusion of protons and neutrons under the action the weak force.
Example : Beta decay
Electromagnetic force:
The interaction between the charged particles is called electromagnetic force.
The electromagnetic force is one of the four fundamental forces.
The electromagnetic force is effective at long range distance.
The range and relative strength of electromagnetic force is infinity and 10³⁶ with respect to gravitational force respectively
Example : light
Answer:
First choice
Explanation:
A satellite in orbit around Earth experiences only one force: the gravitational attraction exerted by the Earth on it. This force is labelled with 
. In space, there are no other forces acting on the satellite.
The force of gravity acts as centripetal force, "pulling" the satellite towards the centre of its circular orbit. The inertia of the satellite (which has an initial velocity) tends to keep it moving straight, so the combination of these two effects (inertia and force of gravity) results into the circular motion of the satellite.
Answer:
Sleep, behavior patterns, mental state, and job
Explanation:
Answer:
An electric current flows in a loop,powering bulbs or other electric COMPONENTS. The loop is an electric circuit. A circuit is made up of various components linked together by wires. The current is driven around the circuit by a power source, such as a BATTERY.
Voltage: is the energy given to each unit of charge that flows in a circuit
Current: is the amount of electric charge flowing past a point in a circuit each second
Wattage: is the amount of electrical energy a circuit uses each second
