Answer:
Carbon dating only works for objects that are younger than about 50,000 years, and most rocks of interest are older than that. ... Scientists can determine how long ago an organism died by measuring how much carbon-14 is left relative to the carbon-12.
Explanation:
Answer:0.14 kg
Explanation:
Gravitational potential energy=pe=116.62J
Height=h=85m
Acceleration due to gravity=g=9.8m/s^2
Mass=m
Pe=m x g x h
116.62=m x 9.8 x 85
116.62=m x 833
Divide both sides by 833
116.62 ➗ 833=(m x 833) ➗ 833
0.14=m
Mass=0.14 kg
Answer:
36.22 mA
Explanation:
i1 = I , i2 = I, d = 8.2 cm = 0.082 m
Force per unit length = 3.2 nN/m = 3.2 x 10^-9 N/m
μo = 4 π × 10^-7 Tm/A
The formula for the force per unit length between the two wires is given by
F = μo / 4π x (2 i1 x i2) / d
3.2 x 10^-9 = 10^-7 x 2 x I^2 / 0.082
I = 0.0362 A = 36.22 mA
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