Answer:
Sunspot cycle
Explanation:
The number of sunspots seen on the "surface" of the Sun varies every year. These variations are called a cycles. The length of the cycle is about eleven years on average. The Sunspot Cycle was discovered in 1843 by the amateur German astronomer Samuel Heinrich Schwabe.
Answer:
Current = 8696 A
Fraction of power lost = = 0.151
Explanation:
Electric power is given by
where I is the current and V is the voltage.
Using values from the question,
The power loss is given by
where R is the resistance of the wire. From the question, the wire has a resistance of per km. Since resistance is proportional to length, the resistance of the wire is
Hence,
The fraction lost =
Kinetic energy than parked
In a collision an object experiences a force for a specific amount of time, which results in a change momentum(the objects mass may ethier speed up or slow down). Impulse will be produced because of force appiled to an object over a period of time.