Answer:
1.95m/s
Explanation:
Please view the attached file for the detailed solution.
The following were the conversion factors used in order to express all quatities in SI units:
Answer:
0.1364 $/kWh
Explanation:
Annual expenditure of the family on electricity = $1500
Total energy consumed during the year = 11000 kWh
Kilowatt hour is the unit of energy which is given by the product of the energy in kW and the number of hours that energy has been used.
Unit price of energy = Annual expenditure / Total energy consumed during the year
∴ Unit price of energy is 0.1364 $/kWh
The answer for the question is D.
When waves travel across strings, the larger the tension of the string the faster the velocity of the wave. This is because of the equation:
v = the square root of (T/(m/L)) where T is the tension, m the mass of the string, and L the length of the string
Hope this helps!
Nonmetals because they are different from metals and and the elements to the right of the periodic table are not good insulaters