Answer:
Yes, when dealing with electricity as long as there is an input source there is always built up energy waiting to be used also known as kinetic energy. The fan is not spinning but if it were turned on it would spin instantaneously.
Answer:
a = 1.962 m/s²
Explanation:
The frictional force applied on the car can be given by the following formula:
where,
f = frictional force = ma (according to Newton's Second Law)
μ = coefficient of friction = 0.2
R = Normal Reaction = Weight of car = mg
Therefore, equation becomes:
where,
a = maximum acceleration = ?
μ = coefficient of friction = 0.2
g = acceleration due to gravity = 9.81 m/s²
Therefore,
<u>a = 1.962 m/s²</u>
Answer:
True
Explanation:
If the object moves at constant speed then it means that the velocity changes instantaneously although the speed does not change. The change in velocity brings out acceleration and where there is a mass that undergoes acceleration there must be an external resultant force. this force is centripetal force.
A small summary of the 4 areas can be described as:
<em>Location: </em>The tradition of location tries to explain the course of human settlements in terms of location, growth and in relation to other premises.
<em>Area analysis tradition</em> determine as much as possible to obtain information about a particular place to define, describe and differentiate it from other regions or areas.
<em>Culture-environment tradition</em> is the study of the relationship between human beings and the land in which they live. Culture-environment not only analyzes the impact that people impose on their local environment, but, on the contrary, how natural hazards can influence human life.
<em>Earth Science Tradition</em> is the study of planet Earth as the home of humans and their systems. Along with the physical geography of the planet, the study approaches include things like how the location of the planet in the solar system affects its seasons (this is also known as Earth-Sun interaction) and how changes in the lithosphere, hydrosphere, atmosphere and Biosphere impacts human life on the planet.
Therefore the correct answer is B.
Answer:
It increases by four times the initial amplitude.
Explanation:
The amplitude of a sounde is inversely proportional to the square of the distance between the listener and the sound source:
In this problem, the distance is decreased to hald the initial distance, so we can write
therefore, the new amplitude will be
So, the amplitude increases by a factor 4.