If an initial cardioversion attempt is unsuccessful in a 33-pound child, you should repeat the procedure using 30 joules.
Cardioversion
Cardioversion is a medical therapy that uses medications or electricity to restore a normal heart rhythm to someone who has an abnormally high heart rate (tachycardia) or another cardiac arrhythmia. Synchronized electrical cardioversion restores the activity of the heart's electrical conduction system by applying a therapeutic dosage of electric current to the heart at a specified point in the cardiac cycle. (Defibrillation is the most efficient form of resuscitation for cardiac arrest caused by ventricular fibrillation and pulseless ventricular tachycardia. It delivers a therapeutic dosage of electric current to the heart at an unpredictable point in the cardiac cycle. Chemical cardioversion, also known as pharmacologic cardioversion, substitutes antiarrhythmic drugs for an electrical shock.
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Answer:
B. Along this path the gravitational potential energy of the system is never zero.
D. At every location along the comet's path the gravitational potential energy of the system is negative.
E. The sum of the kinetic energy of the system plus the gravitational potential energy of the system is the same at every location along this path.
Explanation:
Gravitational potential energy of the system is given as
now we know that
since the system is bounded to move together so the total mechanical energy must be negative
so sum of kinetic energy and potential energy must be negative at all locations.
Also we know that that potential energy is always non zero and a negative quantity here.
The similarity is that they both are types of bonds in molecules.
Ionic bonds are between a metal and a nonmetal.
Covalent bonds are between two nonmetals.
273 - 34 = 239.
So the answer is 239