Answer:
NO
Explanation:
No, a machine cannot be 100% efficient. This is due to the movement of the moving parts siding against each other and causing friction. This friction is the one that creates heat and causes wear and tear between moving ports f the machine hence making the machine to decrease in efficiency with time
1-a 2-b 3-b
srry had to write more, i go to this school
On the floor because the force from the train moving and she wouldn't be able to catch it in time
Electrical power is defined as
P = I * V
I = 3 amperes
V = 240 volts
Power = 3 * 240
Power = 720 Watts. Answer
Answer:
98% sure the answer is A, as coal, when burning, releases thermal and light energy through the fire.
Explanation: