Answer:2738.477 kJ
Explanation:
Given
Lowest Point of death valley is 75.5 m below sea level
Height of Mt. Whitney is 4360 m
mass of hiker =63 kg
Change in potential energy
Considering sea level a datum
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2 answers:
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Answer:
total stretch of the double-length spring will be 20 cm
Explanation:
given data
length x1 = 10 cm
mass = 1 kg
mass = double = 2 kg
to find out
the total stretch of the double-length spring will be
solution
we can say here spring constant is
k = mg ............1
k is spring constant and m is mass and g is acceleration due to gravity
so for in 1st case and 2nd case with 1 kg mass and 2 kg mass
kx1 = mg .........................2
and
kx2 = 2mg ........................3
x is length
so from equation 2 and 3
x2 = 20
so total stretch of the double-length spring will be 20 cm