Better technology is helping us because we can see more stuff like the microscope we able to make assumptions based on what we saw.
We know that momentum = mass times velocity
So a. 720 kgm/s
the purpose of fuses and circuit breakers is (first answer)
Answer:
Required energy Q = 231 J
Explanation:
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)
Required energy Q = 231 J