Answer:t
Explanation:
Given that,
Power output is
P = 0.50kW = 0.5 × 1000 = 500W.
We want to find energy transfer in
t = 2minutes = 2 × 60 = 120 seconds
Also, time to hour
t = 2/60 = 1/30 hour
Power is the rate of energy.
Therefore,
Power = energy / time taken
Energy = power × time taken
Energy = 0.5kW × 1/30 hr
Energy = 0.01667 kWh
Also, energy in Joule
Energy = power × time
Energy = 500W × 120s
Energy = 60,000J
Energy = 60kJ.
Answer:
The value 
Explanation:
From the question we are told that
The volume blood ejected is 
The velocity of the blood ejected is 
The density of blood is 
The heart beat is 
The average force exerted by the blood on the wall of the aorta is mathematically represented as

=> 
=> 
Answer:
assembled
Explanation: because it was last weekend it was in the past so the past tense of assembled must be used
Answer: 0.5 m
Explanation:
Given
Mass of the person is 
Trampoline launches the person into the air up to height of 
Force experience by springs is 
Here, the work done on displacing the springs is equivalent to the Potential energy acquired by the person i.e.
![\Rightarrow F\cdot x=mgh\quad [\text{x=displacement of the trampoline}]\\\\\text{Insert the values}\\\\\Rightarrow x=\dfrac{50\times 9.8\times 2}{1960}\\\\\Rightarrow x=\dfrac{980}{1960}\\\\\Rightarrow x=0.5\ m](https://tex.z-dn.net/?f=%5CRightarrow%20F%5Ccdot%20x%3Dmgh%5Cquad%20%5B%5Ctext%7Bx%3Ddisplacement%20of%20the%20trampoline%7D%5D%5C%5C%5C%5C%5Ctext%7BInsert%20the%20values%7D%5C%5C%5C%5C%5CRightarrow%20x%3D%5Cdfrac%7B50%5Ctimes%209.8%5Ctimes%202%7D%7B1960%7D%5C%5C%5C%5C%5CRightarrow%20x%3D%5Cdfrac%7B980%7D%7B1960%7D%5C%5C%5C%5C%5CRightarrow%20x%3D0.5%5C%20m)