Answer:
1.8 m/s
Explanation:
here's the solution : -
momentum = mass × velocity
=》18 × 0.1
=》1.8 m/s
Sound waves need a medium to travel in because sounds are vibrations in mediums. That's the reason why the phrase "Nobody can hear you scream in space" came from. Space has no medium for sound to reverberate through.<span />
Answer:
put water at room temperature into a vacuum chamber and begin removing the air. Eventually, the boiling temperature will fall below the water temperature and boiling will begin without heating.
The full range of wavelengths of EM waves are called as the Electromagnetic Spectrum. In all possible EM radiation, this is what appears. It can subsume visible light and Xrays or radio frequencies. This is used for spectroscopic purposes at most times.
Answer:
70 %
9.33331 kW
Explanation:
Q = Heat supplied = 800 kJ/min
= Hot reservoir = 1000 K
= Cold reservoir = 300 K
Converting kJ/min to kW
Thermal efficiency
The thermal efficiency is 70%
Efficiency
The power output of the engine is 9.33331 kW
