Answer:
KE = 1/2(m)(v^2)
Explanation:
You only need mass and velocity to find kinetic energy
These three forces are cohesive force, adhesive force and surface tension. The cohesive and adhesive forces are opposite of each other. While cohesive force is the intermolecular bonding between like molecules, the adhesive force is the intermolecular force between unlike molecules. Surface tension is perceived to be the force exerted by the liquid near the surface of the water. Together, these forces bring about an increase in liquid height when a very small tube is placed on a wide surface liquid.
A magnet is made from materials that is magnetized and create its own persistent magnetic field while a electromagnet is mad from coil of wire which acts as a magnet when electric current passes through it.
Answer:
about 200k years
Explanation:
because we were migrating as cavemans.
Answer:
No the crate can not be pushed across the floor.
Explanation:
The static frictional force (
) is the product of the coefficient of static friction (
) and the normal force (
) produced by the floor on the object. Mathematically,

For static friction the normal force (
) is balanced by the weight of the object.
So, for the crate the static frictional force (
) is written as

where '
' is the mass of the crate.
and for the person having mass '
' the static frictional force (
) is written as

Comparing bot the equations,

As,
so,
>
.
Therefore it is not possible for the person to push the crate across the floor.