Answer:
33 gm.
Explanation:
Heat required by coffee in evaporation = m L = m x 560 cals
Heat released by coffee in cooling = m c Δ T = 350 X 1 X 50 = 17500 cals
Heat released by glass cup = 100 x .2 x 50 = 1000 cals ( specific heat of glass is .2 cals per gram per k)
Total heat released = 18500 cals
Heat gained = heat lost
m x 560 = 18500
m = 33 gm.
Answer:
thank u for the happiest year of my life life
Soil<span> can be used to </span>generate electrical<span> power in microbial fuel cells (MFCs), which convert chemical energy from </span>soil<span> organic compounds into </span>electricity<span> via catalysis by </span>soil<span> source exoelectrogenic microorganisms. The process of </span>soil<span> power generation has several potential applications. </span>
Answer:
95 %
99.7 %
Explanation:
= 166 cm = Mean
= 5 cm = Standard deviation
a) 156 cm and 176 cm
From the empirical rule 95% of all values are within 2 standard deviation of the mean, so about 95% of men are between 156 cm and 176 cm.
b) 151 cm and 181 cm
The empirical rule tells us that about 99.7% of all values are within 3 standard deviations of the mean, so about 99.7% of men are between 151 cm and 181 cm.
