Answer:
The difference is that water is an incompressible fluid — its density is almost constant as the pressure changes — while air is a compressible fluid — its density changes with pressure. ... Atmospheric pressure is the pressure exerted on a surface by the weight of the atmosphere (a compressible fluid) above it
Explanation:
change some words
Answer:
The answer would be A (distance traveled in a certain amount of time) !! I did the test ;w;
Answer:
Since S (displacement) = v * t
you can calculate the area under the graph
S = 1/2 * 3 * 15 - 3 * 13 = 22.5 - 39 = -16.5 m
In the triangular area the object travels at an average speed of 7.5 m/s
for 3 sec = 22.5 m
In the rectangular area the object travels at an average speed of -3 m/s
for 13 sec = -39 m.
So the net distance traveled is 22.5 - 39 = -16.5 m
To find the distance the car travels in 20 minutes, we need to figure out what part of an hour 20 minutes is. 20 minutes is 1/3 of an hour (60/20). Now, to find the distance in 20 minutes, we need to multiply the speed per hour by 1/3. 75 * 1/3 is 25. That means this car goes 25 km in 20 minutes. Now we have to convert 25 km to meters. Since there are 1000 meters in a kilometer, we have to multiply 25 by 1000. 25 * 1000 is 25,000, meaning that the car will travel 25,000 meters in 20 minutes.
