Answer:
Compared to the first student, the second student did twice as much work as the first student.
Explanation:
The work done by the first student will be equal to the Force exerted by the backpack on the student carrying it multiplied by one mile (Distance). The work done by the second student will be equal to the Force exerted by the backpack on the student carrying it multiplied by two miles (Distance).
Answer:
Newtons (N)
Explanation:
Because the people in charge of defining SI units said so
Sample Response: liquids flow freely, they take the shape of the container they are in, but have a definite volume. Like liquids, the shape of a gas changes with the container. This is because the atoms in a gas move rapidly and freely to fill any available space. Unlike liquids, the volume of a gas changes depending on the container it is in.
Answer:
A. As air pressure in an area decreases, the density of the gas particles in that area decreases.
Explanation:
At constant temperature, pressure and density of a gas are directly related. So if pressure decreases, density decreases.