Boojho saw a cracker burst at night at a distance from his house. He heard
2 answers:
Light will travel faster than sound. Thus the delayed hearing
Answer:
The primary reason of seeing the cracker burst and hearing the sound later is because the speed of sound and light. Speed of light is in the vicinity of 3*10^8m,/ sec while the speed of sound is at a distance of 332m/sec. It is similar to lightning that strikes before the sound.
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Answer:
7.481W
Explanation:
power= work done÷time
power= force × uniform velocity
a= ∆v/t
29.0ms=
=(0.72-0)÷29×10^-3
a=24.83m/s^2
Newton's second law
f=ma
=(0.84×24.83)
=20.86N
w=FD
v^2=u^2+2as
0.5184=0+49.66s
s=0.0104m
20.86×0.0104
=0.216944J
0.216944÷t
P=7.481W
Answer: A glass mirror
Explanation: Because it has a chrome like panel to it and when the light hits it it reflects back.
<span>False. The third quarter moon is visible in the southern sky at sunrise.</span>
The velocity vector will move you 200 miles east in 4 hours traveling at a constant speed is 50 mph. Below is the solution: Given: 200 miles 4 hours 200 miles/ 4 hours = 50 mph, east Hope it helps.