Answer:
Explanation:
the cross-sectional area of the gold nucleus / the cross-sectional area of the atom = 2.6 x 10⁻⁷
value of radius of gold atom = 1.4 x 10⁻¹¹
cross sectional area = π x (1.4 x 10⁻¹¹ )²
= 6.15 x 10⁻²² Putting this value in the ratio above
the cross-sectional area of the gold nucleus / 6.15 x 10⁻²² = 2.6 x 10⁻⁷
the cross-sectional area of the gold nucleus = 16 x 10⁻²⁹
radius of nucleus R
π R² = 16 x 10⁻²⁹
R² = 5.1 X 10⁻²⁹
R = 7.14 x 10⁻¹⁵ .
Answer:
h = 12.8 cm
Explanation:
from the equation we are given the following:
distance = 6.4 cm
- when the object is being lowered the weight is equal to the spring force
weight = spring force
mg = ky ... equation 1
- potential energy to stretch a spring = work done by the spring
mgh = 0.5 x k x h^{2} ....equation 2
- substituting equation 1 into equation 2
kyh = 0.5 x k x h^{2}
y = 0.5 x h
2y = h
- where y = 6.4 , the maximum elonf=gation becomes
h = 2 x 6.4 = 12.8 cm
<span>The energy production in cell increased. Food gets transformed to ATP a form of chemical energy as a result of respiration taking place in cells. When food is taken it gets digested and transported to cells by the blood for respiration and energy is released. So the scientist will arrive at the inference that the rate of energy increased by having the afternoon snack.</span>
DIVIDE 1 BY 86400 TO CONVERT 1 SECOND INTO SOLAR DAY.
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