Answer: A heat engine cannot be 100% efficient because, according to the law, energy added as heat is always greater than energy removed as heat.
When light goes into a denser medium (and any medium is denser than vacuum) it slows down. For instance the speed in air is: 11.000293=99.97% of this speed, which seems like almost the same ...Answer:
Explanation:When light goes into a denser medium (and any medium is denser than vacuum) it slows down. For instance the speed in air is: 11.000293=99.97% of this speed, which seems like almost the same ...
Answer:
Lf=3.34×105 L f = 3.34 × 10 5 J/kg
Explanation:
It's pretty simple, um, enjoy.
Answer:
The wheel spins for 11.43s. The number cannot be determined.
Explanation:
We know that initial velocity is 124.4 rpm = 13.027137522 rad/s, acceleration is -1.14 rad/s^2, and final velocity is assumed to be 0 rad/s. We are asked to find t and displacement. We use the equation
where
,
,
, and
.
Rearrange the equation to obtain
. Plug in the numbers and solve to obtain
.
The number of the wheel cannot be determined as we do not know the placement of numbers on the wheel.