Answer:
8000 L/ mol cm is the value of the molar absorptivity coefficient.
Explanation:
The slope of the absorbance- concentration graph is equal to the product of path length and molar absorptivity coefficient.
= Rate of change of absorbance with respect to concentration
= molar absorptivity coefficient
l = Path-length
Given the slope of graph of absorbance vs procaine hydrochloride concentration.
y = 240000 x (linear equation)
Path length of cuvette = 3 cm
The units of 
8000 L/ mol cm is the value of the molar absorptivity coefficient.
<span>At where:
Q = amount of sensible heat (cal or J).
C = specific heat of the substance constituting the body (cal / g ° C or J / kg ° C).
M = body mass (g or kg).
Δθ = temperature variation (° C).
T = final temperature
To = Initial temperature
Data:
Q = 10 calories
M = 2 grams
C (ice)= 0.550 cal / g ° C
To = -30 ° C
T =?
Formula:
Q = m * c * Δθ
Resolution:
Substitute
Q = m * c * Δθ
10 = 2 * 0.550 * [T-To]
10 = 1.1 * [T-(-30)]
10 = 1.1 * [T+30]
10 = 1.1T + 33
-1.1T = 33 - 10
-1.1T = 23 .(-1)
1.1T = - 23
T = </span>
T ≈ - 20.90 ° C (the final temperature of the ice)
Her resultant displacement is (45 Meters East.)
She originally walks 45 meters east, then she goes south 45 meters, then north 45 meters. The south and north placements just make her go back to where her previous placements were before them. Making her 45 meters east.
Answer:
The answer is Friction.
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