an observer sitting in a line of two tanks watches the flashes of two tank firing at each other the same time but he hear the sounds of two shots 2 seconds and 3.5 seconds after seeing the flashes if the distance between two trans is 510 meter then find the speed of the sound physics numericals
Answers
Answer:
a quantity that has both a magnitude/size
and direction
b a quantity that has a magnitude/size but
no direction
c the distance something travels in a certain
time
d the speed in a particular direction
e how fast a velocity is changing
2 a Speed is not changing if it stays at
30 km/h. Velocity is changing because the
car is continually changing direction.
b The car is accelerating because the
velocity is changing.
3 a i distance, to know if she has enough
fuel to get there/to work out how long
it will take to get there
ii displacement, because the tunnel can
go in a straight line
b i displacement, as the pilot can move in
a straight line between them and the
displacement also gives information
about which way to go
ii distance, to work out how long/how
much effort it will take to get there
iii displacement, as mobile phone
signals go in straight lines
c i displacement, so he can work out
when the pigeons might be returning
ii distance, to work out if there is
enough fuel for the trip/how long it will
take