Answer:
the third law
Explanation:
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Answer:
3.71 m/s
Explanation:
From the law of conservation of linear momentum, since we are neglecting minor energy losses due to friction then we can express it as
since all the potential energy is transformed to kinetic energy
Making v the subject of the formula then
and here m is the mass of the block, g is acceleration due to gravity, h is the height. Substituting 0.7 m for h and 9.81 for g then we obtain that
She can use the information of redshift of a celestial body is to find the age and distance of the object.
<h3>What is red shift?</h3>
'Red shift' is a critical idea for astronomers. The frequency of the light is increased, so the light is observed as moving towards the red side of the range.
Tabitha knows the redshift value of a particular celestial object. She uses this information to observe the consequence of the redshift.
Thus, the red shift value is used to determine the age and distance of the object.
Learn more about red shift.
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The momentum of a <span>300 kg car traveling at 11 ms is 3300 ms</span>
Gravitational force of attraction between two objects can be calculated from the following formula:

Where m with subscript stands for mass of the object and r is the distance between them.
When we double the mass of those two objects, distance between them stays the same, while in the numerator we have:

When numerator in the second case 4 times greater than the 'original' numerator and denominator stays the same, force becomes 4 times greater.