Answer:
3.06km/hr
Explanation:
Average speed (km/hr) = distance (km)/time(hr)
Total average speed = 152/10
= 15.2km/hr
For the first 85km which he drove for 7hours, average speed = 85/7
= 12.14km/hr
His average speed in km/h for the remaining journey will, therefore, be:
15.2km/hr - 12.14km/hr
= 3.06km/hr
Answer:
rad/s
Explanation:
The wave function is:
where :
k = wave number
x = position of a point on the wave
= angular frequency
t = time
What is another way to express the angular frequency (omega)
Angular frequency (omega) can be express as :
rad/s ( i.e one repetition that it takes to repeats itself)
Answer:
The roof and walls of the auditorium or cinema hall are generally covered with sound absorbent materials like draperies or compressed fibreboard to reduce reverberation. These materials reduce the formation of echoes by absorbing sound waves.
hope it helps!
140 is the velocity because you need to multiply 40×2.5
Because temperature indicates the movement of heat, which means that thermal energy is temperature.