Answer:
brainly.com/question/11848211
^ Similar/same question as yours!
The pressure between two costs is proportional to the product of the charges.
If solely one of the expenses is decreased by way of a element of 3, then the pressure is decreased with the aid of a thing of 3.
If each prices are reduced by a thing of 3, then the pressure is reduced via a issue of 9.
I believe the answer is C
Explanation:
Required energy Q = 231 J
Given:
Specific heat of copper C = 0.385 J/g°C
Mass m = 20 g
ΔT = (50 - 20)°C = 30 °C
Find:
Required energy
Computation:
Q = mCΔT
Q = 20(0.385)(30)
the force required to accelerate a 1,100kg car is 550N
