Answer:
Data:-vi=0 ,vf=4m/s ,s=20m ,a=?
Explanation:
Solution according to 3rd eq of motion 2as=vf²-vi² here we have to find a so a=vf²-vi²/2s ,a=(4²) -(0)²/2×20 ,a=16/40 ,a=0.4m/sec²
Answer:
The force of static friction is 17.15 N
Explanation:
It is given that,
Mass of the bucket, m = 5 kg
The coefficient of static friction is, 
We need to find the maximum force of static friction. It is given by :
F = 17.15 N
So, the force of static friction is 17.15 N. Hence, this is the required solution.
Answer:
Power = 251.9 Watts
Explanation:
Power = Work Done / Time taken
Power = 3441 / 13.66
Power = 251.9 Joule / Second
Power = 251.9 Watts
The sun is at the solstices on roughly June 21 and December 21.
June 21 is the "Summer" solstice in the Northern hemisphere.
At that time, the sun is directly overhead at a point on the Tropic
of Cancer, about 23.5° North of the equator.
December 21 is the "Summer" solstice in the Southern hemisphere.
At that time, the sun is directly overhead at a point on the Tropic
of Capricorn, about 23.5° South of the equator.
