Explanation :
It is given that,
Side of square,
It is given that, the potential at point c is equal to zero.
So, potential at point a due to and is given as:
where,
So, (Since, is negative)
Hence, the potential at a due to and is equal to 0 V.
Answer: 207 W
Explanation: I assumed here that the object is moved vertically. If that is the case, the work done on the object is equal to its change in gravitational potential energy:
where
m = 47 kg is the mass of the object
g = 9.8 m/s^2 is the acceleration of gravity
is the change in height
Substituting,
Now we can calculate the power used, which is given by
Hope this helps I'm sorry if i'm wrong but I tried :(
Answer:
7.5 seconds
Explanation:
because wattsXtime=Joules so 120X__=900. 900 divided by 120= 7.5
Answer:
He has 5,609,404 J of potential energy
Explanation:
P.E. = M*G*H
65 * 9.8^2 * 8800