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Maslowich
3 years ago
13

A plane is heading south with a velocity of 150 kilometers/hour. It experiences a tailwind with a velocity of 20 kilometers/hour

. Find the resultant velocity of the plane.
Physics
2 answers:
Tatiana [17]3 years ago
6 0
The tailwind speed would actually add up to the speed of the plane.

It would blow from behind the tail of the plane.

Resultant Velocity = 20 km/h + 150 km/h = 170 km/h

s2008m [1.1K]3 years ago
3 0
The resultant velocity of the plane is the sum of the velocities of the plane and the wind with the consideration of their directions. The plane heads south and the wind being a tailwind also heads south. Hence, we add their values. That is,
                                 r = 150 km/hr + 20 km/hr
The answer is 170 km/hr. 
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Calculate the nuclear binding energy per nucleon for 136^Ba if its nuclear mass is 135.905 amu.
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Explanation:

mass of ¹³⁶Ba = 135.905 amu

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mass of proton = 1.00728 amu

mass of neutron = 1.00867 amu

mass of ¹³⁶Ba = 56 x  1.00728 amu + 80 x 1.00867 amu

                      = 137.10128 amu

mass defect = 137.10128 - 135.905

                    = 1.19628 amu

mass defect = 1.19628 x 1.66 x 10⁻²⁷ Kg

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E = 1.9858 x 10⁻²⁷ x (3 x 10⁸)²

E = 17.87 x 10⁻¹¹ J/atom

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binding energy per nucleon =\dfrac{17.87\times 10^{-11}}{136}

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                                              = 1.312 x 10⁻¹² J/nucleon

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