Explanation:
The difference between final and initial position of an object is called its displacement. Its formula is given by :
It is equal to the shortest path covered by it. It is a vector quantity. It has both magnitude and direction.
Answer:
Explanation:
Ah is a unit of charge .
A battery with 12 V and charge capacity of 40 Ah will have energy content
= volt x charge
volt = 12 V
Charge = 40 Ah
= 40 x 60 x 60 A.s
= 144000 coulomb
energy content = 12 x 144000
= 1728000 J
energy content of heavy duty battery
= 12 x 60 x 60 x 60
= 2592000 J
Ratio = 1728000 / 2592000
= 2 / 3
Current can not be compared as current depends upon the resistance of appliance used . As resistance of appliance is unknown , current can not be compared.
Answer:
systems help identify parts and simplify solutions.
Explanation:
Systems are very important in science because they are made up of many parts and can help simplify solutions better.
A system is made up of several parts that are interacting together as a whole. They are very important in solving scientific problems and looking introspectively into a problem.
The parts that makes up the system are equally important as the whole. Systems are typified by what transpires at the level of their parts. Viewing a problem from a system wide angle helps scientists have better knowledge and can be vital in solving scientific problems.
Answer:
3 A
Explanation:
Charge is a product of current and time, expressed as Q=It where Q is charge in Coulombs, I is current in Amperes and t is time taken in seconds. Making I the subject of the formula then 
Substituting 120 C for charge and 40 s for t then
From the choices given, it appears that time should have been 4 s to get option A or alternatively charge should have been 1200 C
Give me some answer choices and i will be happy to help
