The box is accelerated from rest to 4 m/s in a matter of 2.5 s, so its acceleration <em>a</em> is such that
4 m/s = <em>a</em> (2.5 s) → <em>a</em> = (4 m/s) / (2.5 s) = 1.6 m/s²
Then the force applied to the box has a magnitude <em>F</em> such that
<em>F</em> = (10 kg) (1.6 m/s²) = 16 N
Answer:
C. simple
The term that refers to the fact that an epithelial tissue has only one layer of cells is simple epithelial.
Explanation:
Epithelial tissues are thin tissues that cover all the exposed surfaces of our body.
Based on the number of cell layers, the simplest classification of epithelial tissue is:
a. Simple Epithelial Tissue
When the epithelial tissue consists of a single layer of cells, it is called simple epithelial tissue.
b. Stratified Epithelial Tissue
When there are two or more layers of cells in epithelial tissue, it is called stratified epithelial tissue.
Cuboidal epithelial is also a type of simple epithelial tissue.
Pseudostratified is another type of epithelial tissue which falls in neither simple nor stratified category. They consists of a single layer but the positioning suggests it is stratified.
There are 3 types of epithelial tissues based on their shape:
a. Squamos epithelial tissue
b. Cuboidal epithelial tissue
c. Columnar epithelial tissue
Answer:
The separation between the charges was decreased by a factor of 0.2
Explanation:
The Coulomb's force between two charges is given by;
r₂ = 0.2r₁
Therefore, the separation between the charges was decreased by a factor of 0.2.
Answer: below
Explanation: 1kg of steel is slightly heavier than 1 kg of feathers. 1 kg of feather will displace more air as the density of feather is very less comparitively. More the volume displaced more is the upthrust and less the apparent weight.
F = ma
Where m = mass of body, a = acceleration.
F = ma = m(v - u)/t
So for an acceleration to occur, a force is required.
Also a change of velocity is required for acceleration to occur.
