Answer:
Explanation:
The energy lost due to air friction is equal to the mechanical energy lost by the parachutist during the fall.
The initial mechanical energy of the parachutist (at the top) is equal to his gravitational potential energy:
where
m = 20.1 kg is his mass
is the acceleration due to gravity
h = 662 m is the initial heigth
The final mechanical energy (at the bottom) is equal to his kinetic energy:
where
v = 7.12 m/s is the final speed of the parachutist
Therefore, the energy lost due to air friction is:
Answer: Your using your skeletal muscle
Explanation:
Answer:
The power of 10 in the given value is 5.
Explanation:
scientific notation is expressed in the decimal form. That means always written in the power of 10 form. The decimal place is put after 1 digit.
Answer:
the answer is fulcrum because
Explanation:
lever is a simple machine consisting of a bar that rotates around a fixed point. The fixed point of a lever is called the fulcrum. Like other machines, a lever makes work easier by changing the force applied to the machine or the distance over which the force is applied
To solve the problem it is necessary to refer to the definition of entropy.
Entropy is defined aso
Where,
Heat exchange
T = Temperature
Since the heat exchange is conserved and it is an isothermal process where the temperature remains constant the change in entropy remains the same, ie 
(Reamins same)
Therefore the correct answer is C.
