Technology makes us feel more alone because we are more dependent on social media connections than real life connections. Simply put, technology-independent architecture means not being biased towards any particular platform or software language.
I’m sure gravitation should be at the river sorry if I’m wrong
Question
Determine its kinetic energy
Answer:
0.5 J
Explanation:
Kinetic energy is given by
where m is the mass and v is the speed
Substituting 250g= 0.25 Kg for mass and 2 m/s for v then
=0.5 J
I have attached the solution as image.
Answer:
20%
Explanation:
Efficiency of an engine is a ratio in percentage of the work done to the energy intake of the engine.
η=(q₁-q₂)/q₁×100%
η is efficiency, q₁ is the energy intake, q₂ is energy wasted.
the information provided is:
energy intake = 400 j
work done = 80 j = (400-320) =q₁-q₂
energy wasted =320 j
η= 80/400×100%
=20%
