Newton's universal law of gravitation states that all objects attract each other with a force directly proportional to their masses and inversely proportional to the square of the distance between their centers. When considering objects on the surface of the Earth, the force is directly proportional to the product of the mass of the object and the acceleration due to gravity at the Earth's surface. Since the Earth is larger than any other object under consideration, the object is drawn toward the Earth.
Explanation:
The magnitude of the gravitational force between two objects is given by Newton's universal law of gravitation:
where
:
is the gravitational constant
m1, m2 are the masses of the two objects
r is the separation between them
This force is always attractive.
At the Earth's surface, this can be rewritten as
with
where M is the mass of the Earth, R is its radius, and m the mass of the object.
g is called acceleration due to gravity and it is the value of the acceleration due to the force of gravity of any object near the Earth's surface (its value is approximately 
. Since the Earth is much more massive than any other object, the object is attracted towards the Earth (so, it accelerates towards it); the Earth is also attracted by the object, however, being its mass so large, its acceleration is negligible.
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The answer is All of the above
The emergency department nurse should be aware that the patient is having anaphylaxis due to a<span> massive release of histamine. </span>The emergency department nurse should be aware that an apparent anaphylaxis presents as difficulty breathing, decreased SpO2, decreased blood pressure, increased heart rate, and other signs and symptoms attributed to shock. The nurse should recognize that peanuts are one of the most common allergens in triggering anaphylactic reaction.
Answer:
B. the action of microRNAs that block translation of specific mRNA molecule
C. the action of RNA–protein complexes that degrade the regulatory proteins responsible for initiating transcription.
Explanation:
RNA interference occurs what RNA prevent the translation of some gene this is done by neutralizing target mRNA molecule. It suppresses the effects of some desires genes through its action.
MicroRNA and small interfering RNA (miRNA and siRNA) are the major RNA that controls interference. siRNA and miRNA prevent translation by directing some enzmes complexes to denature the mRNA molecule needed for translation. They intiate post transcriptional splicing.
RNA interference is found in eukaryote and some animals and its initiated by enzyme Dicer that inhibits translation by degrading the enzymes action.
