A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation. Using this equation, find the time that the rocket will hit the ground, to the nearest 100th of second.
y=-16x^2+129x+119
y=−16x
2
+129x+119Explanation:
<h3>
NEUTRONS AND PROTONS</h3>
The nucleus is a collection of particles called protons, which are positively charged, and neutrons, which are electrically neutral. Protons and neutrons are in turn made up of particles called quarks. The chemical element of an atom is determined by the number of protons, or the atomic number, Z, of the nucleus.
Out of the following given choices
a) Brooke’s finger accidentally grazes the hot
iron; she immediately yanks her hand away.
<span>
b) After a satisfying evening meal, Callum
relaxes in front of the television.
<span>
<span>c) Walking toward her car is a deserted parking
garage one night, Danica is surprised by a strange man appearing from nowhere.</span>
<span>
<span>d) Emmeline feels queasy as she approaches the
front of the class to give a speech; suddenly, her throat goes dry.</span>
<span>
The answer is B. The
parasympathetic nervous system is part of the autonomic nervous system that
regulates the unconscious actions of the body. The system is regarded as significant in the ‘rest-and-digest’
activity and also the ‘breed-and-feed’. </span></span></span></span>
All of the following contributes to turbulent blood flow except third and fourth heart sounds.
<h3><u>
Explanation:</u></h3>
The blood flow in human body is always described to be laminar. Some conditions cause the high flow when there is an ascending aorta. This causes the laminar flow of blood into turbulent. When this occurs the flow of the blood will not be smooth and linear.
When the kinetic energy in the fluid flow increases the turbulent flow of blood occurs. Both the magnitude and the direction of the flow changes in this type of blood flow. These are caused by the irregularities in the vessel walls, flow rates to ne higher and opening of the valves of the heart.
