The number of galaxies similar in size to the milky way that one can expect to find in cubes of that same size will be 64.
<h3>What is a milky way?</h3>
It should be noted that milky way simply means a spiral galaxy shaped that contains stars.
Here, the number of galaxies similar in size to the milky way that one can expect to find in cubes of that same size will be 64.
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brainly.com/question/13956361
Answer:
2,3, and 4 in ED are the correct answer choices
Explanation:
Force of gravity on an object is the weight of the object and is given by mass times accerelation due to gravity. The accerelation due to gravity is the accerelation of an object in free fall and is given by 9.8m/s^2. Given that the force of gravity acting on a child's mass on earth is 490 newtns, i.e. F = mg which means that 490 newtons = 9.8 times mass. Therefore, mass of the child is 490 / 9.8 = 50 kg.
Alpha > Beta > Gamma
Explanation:
Alpha particles are the heaviest radiation whereas gamma rays are the lightest.
An alpha particle closely resembles a helium particle.
Beta particles are similar to electrons in nature
Gamma rays have no weight. They are just rays.
Alpha particles have a mass of 4.0012amu which is that of helium
Beta particles have a mass of 5.5 x 10⁻⁴ amu
Gamma rays have no mass.
Learn more:
Electromagnetic radiations brainly.com/question/6818046
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