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anzhelika [568]
3 years ago
13

Why intermediate elements has negative packing fraction?

Physics
1 answer:
GuDViN [60]3 years ago
3 0

Explanation:

The negative value of the packing fraction indicates that the actual isotopic mass is less the mass number.

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An AED should only be used if a person is too tired to continue with chest compressions.
malfutka [58]

The given statement "An AED should only be used if a person is too tired to continue with chest compressions" is false.

Answer: Option B

<u>Explanation:</u>

Most people think that they are very tired after applying the compress for 2-3 minutes. When the compressor is tired, it tends to compress more slowly. For this reason, rescuers are advised to do compressions in every 2 min to prevent fatigue and optimise the compressions quality. This should only be done if the person does not show signs of life or is dead, does not respond and breathes normally.

For example, consider you come across the victim in a narrow place and you have two helpers: Rescuer 2 arrives with the AED (automated external defibrillator) and puts it on the opposite side from Rescuer 1, who does chest compressions. Rescuer 2 turns on the AED and fixes the electrodes to the victim's chest, connecting wires to the AED if necessary. Rescuer 1 can continue CPR (Cardiopulmonary resuscitation) by placing electrodes until the victim's heart rate has been analysed.

6 0
3 years ago
Which of the following sets of characteristics describe what we know about the outer planets? (2 points)
masha68 [24]

Answer: D

Explanation: Gaseous composition, larger size and many moons

6 0
3 years ago
A person is drinking a glass of soda with ice.
prisoha [69]

The relative kinetic energy of molecules in the soda is least energy and above the soda in the glass is greatest energy.

The relative kinetic energy of gas molecules increases with increase in the mean distance between the gas molecules.

Also, relative kinetic energy of gas molecules increases with in the temperature of the gas molecules and decreases with a decrease in the temperature of the of the gas molecules;

ΔK.E ∝ T

The ice in the soda lowers the temperature of the gas molecules, thereby reducing their average speed which in turn reduces the average kinetic energy of the gas molecules in the soda.

Above the soda in the glass, the concentration of the gas molecules is less and their mean distance is greatest when compared to inside the soda. This results to an increase in the speed of the gas molecules which increases their average kinetic energy.

Thus,  the relative kinetic energy of molecules in the soda is least energy and above the soda in the glass is greatest energy.

Learn more about temperature and kinetic energy here: brainly.com/question/305606

3 0
3 years ago
Select the order in which the flow of current is listed from greatest to the least.
Radda [10]

Answer:

Short circuit, closed circuit, open circuit

7 0
3 years ago
Read 2 more answers
Si el sonido no atraviesa las paredes entonces, ¿por qué se escuchan las voces de los vendedores dentro de nuestra casa aún cuan
lutik1710 [3]

Answer:

DE HECHO EL SONIDO DÍ PUEDE ATRAVESAR LAS PAREDES, PERO

CUANDO ENTRA EN LA PARED, EL SONIDO VIAJA MÁS RÁPIDO QUE EN EL

AIRE Y CUANDO SALE DEL OTRO LADO, EL SONIDO VA A UNA

VELOCIDAD ALTA, POR ESTO LSA VOCES SE ESCUCHAN AUNQUE NO

MUY CLARAS.

Explanation:

4 0
3 years ago
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