In the apple-pulling-the orange sequence in this chapter, the force that accelerates the system across the floor is;
Friction between the apple and the floor.
<h3>Frictional Force</h3>
The sequence talked about here is a system showing how an apple was pulling an orange that was located inside a moving toy.
Now, we know that there is usually a force that acts between a moving object and the floor and this force is called friction force.
Thus, the force that makes the apple to pull the orange with acceleration across the floor is called friction force between the apple and the floor.
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Answer:
250 N
Explanation:
Assuming both girls are pushing in the same direction
Given
Total amount of force,they exert on box= 500 N
let <u>force exerted by Macy</u> =
<u>force exerted by Sam</u>=
⇒ +=500 N
But also given <u>both girls push with equal amount of force</u>
⇒ =
Therefore
+ =500 N
=500 N
=250 N
⇒ =250 N , = 250 N
Answer:
D) A warm front brings drizzly weather.
Explanation:
Answer:
It is used in MRI because it does not damage cells
Radio waves are used for space research because they have very long wavelengths
Explanation:
Many parts of the electromagnetic spectrum are applied in clinical diagnosis and treatment of illnesses. However, these highly ionizing radiation damage cells and its dosage must be carefully managed to avoid creating radiation related health problems for the patients.
Radio waves can be used in MRI without issues because the energy of the radiation is not sufficient to cause damage to cells but is sufficient to provide images for the sake of medical diagnosis.
Secondly, radio waves have long wavelength. This property is suitable for long range
communication. Hence it can be used in space research