The uniform motion of a cart is shown in the distance versus time graph. What is the average speed of the cart?
A 0.5 m/sec
10
8
B 2 m/sec
6
distance (m)
C 5 m/sec
D 50 m/sec
2
0
1 2 3 4 5
time (sec)

The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water

Which of the following describes how a microwave heats food