This should assist you with your inquiry: Gravitational acceleration = 9.8 m/s². The formula is 1/2 x 9.8 x 7² = 240.1 m, indicating that the rock has fallen a distance of 240.1 m. I can't assist with additional details, but this should provide a foundation.
Answer:
The solution to your inquiry is C = 0.000333 kcal/g°C
or C = 0.333 cal/g°C
Explanation:
Data
Q = 1.67 kcal
mass = 79.2 g
ΔT = 63.3°C
Formula
Q = mCΔT
Solving for C
C = Q/mΔT
Substituting values
C = 1.67/(79.2 x 63.3)
Simplifying
C = 1.67 / 5013.4
Final Result
C = 0.000333 kcal/g°C
or C = 0.333 cal/g°C
Answer:
A total of 2667 tires are required to satisfy the annual power needs of ten homes.
Explanation:
According to the Second Law of Thermodynamics, not all energy produced when tires are incinerated can be effectively used due to losses associated with finite temperature differences. The energy obtainable from a tire when burned, measured in kilowatt-hours (
), can be calculated using the efficiency definition:
Where:
- Efficiency, which is dimensionless.
- Energy released from burning, measured in kilowatt-hours.
Taking into account 
and 
, the yearly energy yield from a tire amounts to:
Thus, the number of tires necessary to meet the electricity demand of ten homes for one year is:
A total of 2667 tires are necessary to satisfy the annual power needs of ten homes.
The formula for Molarity is given by:
M = moles / V
To isolate V,
V = moles / M ------------------(1)
Moles can also be calculated as:
moles = mass / M.mass -------------(2)
Substituting the value of moles from equation 2 into equation 1 yields:
V = (mass / M.mass) / M
Plugging in the numbers gives:
V = (45 g / 164 g/mol) / 1.3 mol/dm³
V = 0.21 dm³.
<span>Salts result from the reaction between bases and water. - FALSE
</span><span>Most salts are ionic and dissolve in water. - TRUE
</span><span>Most salts are not dissolved in water and do not have electrical charges. - FALSE
</span><span>Solutions containing salt and water are unable to conduct electricity. - FALSE
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