What is thermal equilibrium?
2 answers:
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Force of 500 N is acting on the parachutist.
Parachutist applies 500 N force in downward direction.
Answer:
300 N upward
Solution:
Parachutist feels air resistance of 800 N.
Thus, 800 N of force is acting in upward direction.
Total force acting on the parachutist is given by,
= air resistance force - force of parachutist
= 800-500
= 300 N
Direction of force is in upward direction because the air resistance force is more than force of parachutist.
Answer:
a)
b)
Explanation:
From the question we are told that:
Velocity of eagle
Frequency of eagle
Velocity of Black bird
Speed of sound
a)
Generally the equation for Frequency is mathematically given by
b)
Generally the equation for Frequency is mathematically given by