Solution :
Mass is varied keeping frequency constant.
Wavelength, λ 
where length of spring = l
number of segments = n
Velocity, v = λ x f
= 
= mass density, T = tension in string

, n = 2



Therefore, μ = 0.002785 kg/ m
Frequency is varied keeping T constant



f = 210 Hz
Answer:
the tension generated on the vine is equal to 784.8 N
Explanation:
As Tarzan is testing the strength of vine
to test the vine Tarzan hangs on it.
given,
mass of Tarzan = 80 kg
acceleration due to gravity = 9.81 m/s²
tension on the wire will be
T = m × g
T = 80 kg × 9.81 m/s²
T = 784.8 kg.m/s²
T = 784.8 N
hence, the tension generated on the vine is equal to 784.8 N
Mass extinction occur from natural disasters, such as a n asteroid hitting earth or a volcano errupting and spread ash everywhere.
It makes sense to measure geologic time between mass extinctions because after each mass extinction, there is almost no life left and the few left have to repopulate, which may lead way to new mutations and new varieties of plants and animals.
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Answer:
0.13 seconds
Explanation:
Since 1 Km = 0.621 miles
3.84 x 105 km = 3.84 x 105 × 0.621 = 23846.4 miles
Speed = distance/time
time= distance/speed
Time= 23846.4/186,000
Time= 0.13 seconds