2. Write the chemical symbol of the atom.
1. Use the periodic table to find the chemical symbol of the atom and the number of electrons in the valence shell.
3.Draw dots around the chemical symbol to represent the valence electrons of the atom.
4. Count the dots to make sure that all of the valence electrons are represented.
Answer:
given , v = 300 km/hr; distance d = 1500 km; then time t = d/v = 1500/300 = 5 hrs
Explanation:
Given that,
Electrical energy of the motor = 2280 J
Kinetic energy = 1606 J
Wasted energy in thermal and sound energy = 550 J
To find,
The efficiency of the motor in percent.
Solution,
Efficiency is defined as the ratio of useful output energy to the total energy.
Total energy = 2280 J
Useful energy = 1606 J
So, the efficiency of the motor is 70.43%.
Answer:
arithmetical multiplier for converting a quantity expressed in one set of units into an equivalent expressed in another.
Explanation:
"The <span>ground is positively charged and the clouds are negatively charged " is the statement among the statements given in the question that </span><span>best explains the movement of electric current from the clouds to the ground during a lightning storm. The correct option among all the options that are given in the question is the third option or option "C". </span>