Daniel is standing a certain distance from a wall and claps. He hears the echo 4s later. How far away is the wall? Remember that the sound has travelled to the wall and come back.
(Take the speed of sound in air to be 330 m/s).

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg

a 2,000 calorie based diet.

can u provide the graph and if its not possible

then i can tell u the segment where the

average time interval starts degrading is the segment where the car is slowing down