Answer:
1500 J
Explanation:
Apparently, we're to assume that no energy is lost to friction or other effects. Then all of the energy the train has is due to work being done on it.
1500 J of work was done on the train
Answer:
a.) Speed V = 29.3 m/s
b.) K.E = 1931.6 J
Explanation: Please find the attached files for the solution
Answer:
-2 m/s
Explanation:
The computation of the acceleration of the block is as follows:
The volume of the block is
V = 1kg ÷ 1,000 kg/m^3 = 1 ÷ 1,000 m^3
Now at the time of submerging in the oil
Net force is
= -2 m/s
Answer:i
Induced emf will be equal to 83.25 volt
Explanation:
We have given value of inductance L = 1.85 H
Initially the current flow is equal to 0.450 A
When switch is open current become 0 in 10 ms
So change in current di = 0.450-0=0.450 A
Time taken to change the current dt = 10 ms = 0.01 sec
Induced emf is equal to
So
Induced emf will be equal to 83.25 volt
Answer:
The Big Bang theory predicts that the early universe was a very hot place and that as it expands, the gas within it cools. Thus the universe should be filled with radiation that is literally the remnant heat left over from the Big Bang, called the “cosmic microwave background", or CMB.
Explanation: