Answer:
C. The floor pushing back against the foot
Explanation:
Answer:

Explanation:
<u>Functions</u>
When one magnitude depends on other (or others), we usually try to express them as a function which can contain any number of variables, constants, and operations.
The area of a circle is computed by the well-known formula

We are required to use function notation to express the area of a circle f(r) in terms of the radius r. If the radius is in cm, then the area is in
.
The required function is

For a radius of 4.3 cm:


Answer:
Gravitational pull
Explanation:
There are four fundamental forces in nature:
- Gravitational force: it is an attractive force exerted between all objects having mass. Its magnitude is proportional to the product of the masses and inversely proportional to the square of the distance between the objects.
- Electromagnetic force: it is the force exerted between electrically charged object. It can be either attractive ore repulsive. Its magnitude is proportional to the product of the charges and inversely proportional to the square of the distance between the objects.
- Strong nuclear force: it is the force responsible for holding protons and neutrons together in the nuclei of the atoms. It is attractive and acts only on a very short scale.
- Weak nuclear force: it is the force responsible for certain nuclear decay processes (radioactivity).
In this problem, landslides occur when certain masses of terrain are attracted towards the ground - they are attracted because of the gravitational force.
So, the correct answer is
gravitational pull
Answer:
EK
Explanation:
Motion energy is properly called kinetic energy; it is proportional to the mass of the moving object and grows with the square of its speed. A system of objects may also contain stored (potential) energy, depending on their relative positions.
Answer:
4. The pressure decreases and the temperature increases.
Explanation:
PV = nRT
Rearrange:
V/R = nT/P
V is constant, so:
k = nT/P
kP = nT
n is increasing.
If P decreases, T must also decrease.