Answer: W = 294 J
Explanation: Solution:
Work is expressed as the product of force and the distance of the object.
W = Fd where F = mg
W= Fd
= mg d
= 15 kg ( 9.8 m/s²) ( 2m )
= 294 J
Answer:
I cant fit the entire picture but this should help
Answer: the true statement form the given statements is “the athletes is not doing any work because he does not move weight”
The temperature of the water and the and the salinity of water
Answer:
The value is 
and

Explanation:
From the question we are told that
The image distance is 
The focal length is 
From the lens equation we have that

=> 
=> 
Generally the magnification is

=> 
=> 