The answer is D.
C and A are incomplete as they only treat specific types of energy, and B doesn't answer the question.
Answer:
(A) 0.8 kgm/s
Explanation:
because of the even ground it would only slow down
Answer:
y = 2.196 m
Explanation:
Mass, m = 76 kg
distance from axis of rotation, x = 0.38 m
Second Force, F = 129 N
moment arm of the second force, y = ?
Now, equating moments for the equilibrium
So,
m g × x = F x y
76 x 0.38 x 9.81 = 129 x y
y = 2.196 m
Hence, the length of the moment arm is equal to 2.196 m.
Assumed that resistors are connected in series .
Current=I
Answer:
60°C
Explanation:
The dish starts at 110°C and goes down to 50°C
This is the term : 110°C - 50°C
Since 110-50=60, the answer is 60°C
The equation is 110°C - 50°C = 60°C
Extra:
I'm not an expert on this so I'm sorry if it's wrong!