Answer:
Option B is correct.
Explanation:
Given data
Height of the hill = AB = 1 m
Distance traveled along the rough bottom surface = AC = 2 m
Now from the ΔABC
°
We know that the coefficient of kinetic friction is
0.5
This is the value of the coefficient of kinetic friction
Thus option B is correct.
Answer:
Amplitude.
Explanation:
A wave can be defined as a disturbance in a medium that progressively transports energy from a source location to another location without the transportation of matter.
In Science, there are two (2) types of wave and these include;
I. Electromagnetic waves: it doesn't require a medium for its propagation and as such can travel through an empty space or vacuum. An example of an electromagnetic wave is light.
II. Mechanical waves: it requires a medium for its propagation and as such can't travel through an empty space or vacuum. An example of a mechanical wave is sound.
An amplitude can be defined as a waveform that's measured from the center line (its origin or equilibrium position) to the bottom of a trough or top of a crest.
Hence, an amplitude is a word that describes the maximum displacement a point moves from its rest position when a wave passes.
On a graph, the vertical axis (y-axis) is the amplitude of a waveform and this simply means that, it's measured vertically.
Mathematically, the amplitude of a wave is given by the formula;
x = Asin(ωt + ϕ)
Where;
x is displacement of the wave measured in meters.
A is the amplitude.
ω is the angular frequency measured in rad/s.
t is the time period measured in seconds.
ϕ is the phase angle.
Answer:
C sedimentary rocks is the answer.
Explanation:
<span><u>Answers</u>
</span>Hurricanes.<span>
<u>Explanation</u>
Hurricane is a tropical cyclone that mostly occurs in the atlantic ocean and in the northern pacific ocean. It resembles a rapid rotating storm characteristic by low pressures.
So, best answer that suits the question asked is: </span><span>b. hurricanes.</span><span>
Powerful tropical storms that are characterized by wind speeds greater than 120 km/h and storm surges are called </span>hurricanes.
"Generally, electromagnetic<span> radiation is classified by wavelength into radio wave, microwave, terahertz (or sub-millimeter) radiation, infrared, the visible region that is perceived as light, ultraviolet, X-rays and gamma rays. The behavior of </span>EM<span> radiation depends on its wavelength."
Source: wikipedia.org</span>