Answer:
there are over 100 billion stars in our galaxy.
a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass.
The correct answer to the question is: 78.4 N.
CALCULATION:
As per the question, the mass of the object is given as m = 8 Kg.
We are asked to calculate the force of 8 Kg object pushing up from the table.
The force pushing up from the table is nothing else than the normal reaction.
The normal reaction of the object is equal to the weight of the object as the object is simply resting on the table.
Hence, normal reaction = Weight
= mg
= 8 × 9.8 N.
= 78.4 N.
Here, g is known as acceleration due to gravity.
Hence, the force of the object pushing up from the table is 78.4 N.
Answer:
The product of (wavelength) x (frequency) is always the same number ... the wave's speed.
So if the wavelength is somehow reduced to 1/4 its original length, the frequency is immediately multiplied by 4 . That's the only way their product can remain the same.
Explanation:
The density of the object is 0.032 g/cm^3.
<h3>What is density?</h3>
The term density means the ratio of the mass to the volume of an object. Now we know that when an object is dense that it would sink to the bottom of a fluid.
Now given that;
Mass = 0.8 g
volume= 25 cm^3
Density = mass/volume
Density = 0.8 g / 25 cm^3
= 0.032 g/cm^3
Learn more about density:brainly.com/question/15164682
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MISSING PARTS
What is the density of an object having a mass of
0.8g and a volume of 25cm^3
