Answer:
C. 21 Joules
Explanation:
We apply the formula to calculate the potential energy (Ep):
Ep=m*g*h
Where:
Ep : potential energy in Joules (J)
m :mass in kilograms (kg)
g acceleration due to gravity (m/s²)
h: height in meters (m)
Calculation of the height (h)
Ep = m*g*h
7 = (1.5 )*(9.8) *(h
)
7 = (14.7) (h
)
h = 7 / (14.7)
h= 0.476 m
Gravitational potential energy of the second object
Ep = m*g*h
Ep = (4.5 )*(9.8) *(0.476
)
Ep = (4.5 )*(9.8) *(0.476
)
Ep = 21 J
Explanation:
hi I like help but I couldn't
Answer: 490m
Explanation: 1/2 * 9.8m/s/s * 10s
Answer:
E = 600 J
Explanation:
The power is
P = W / t = E / t
E = P t
The electrical power is
P = V I
We substitute
E = V I t
Let's calculate
E = 12 50 1
E = 600 J
This is the energy stored in the battery
Please elaborate more on your question so I can help you