If I’m understanding the question then 11.76cm^2 in two sig figs is 12cm^2. I don’t see a part c to this question though so if I’m not giving you the answer you need please advise and I will answer what you need! Thank you!!
Answer:
The minimum thickness of the oil is 77.55 nm
Explanation:
Given:
Refractive index of oil 
Refractive index of water 
Wavelength of light 
m
From the equation of thin film interference,
The minimum thickness is given by,
Where 
,
thickness
Here we have to find minimum thickness so we use 
m
nm
Therefore, the minimum thickness of the oil is 77.55 nm
Answer: 9.375m/s
Explanation: This is an inelastic collision, so the formula is mv1+mv2=(m1+m2)v-final. My work is a follows:
2500kg(12m/s) + 700kg(0m/s)=(2500kg+700kg)(v-final)
30,000kg(m/s)+0=3200kg(v-final)
30,000kg(m/s)/3200kg=9.375m/s
Answer:
Explanation:
Given
-- Mass of the boy
-- Mass of the girl
-- Acceleration of the girl towards the boy
Required
Determine the acceleration of the boy towards the girl (
)
From the question, we understand that the surface is frictionless. This implies that the system is internal and the relationship between the given and required parameters is:
Substitute values for 
and 
Make the subject
<em>Hence, the acceleration of the boy towards the girl is 1.446m/s^2</em>
Answer;
light fixtures
Explanation;
Radioactive isotopes have a variety of applications. They are useful because either we can detect their radioactivity or we can use the energy they release.
These uses includes;
- Radioactive Dating; Radioactive isotopes are useful for establishing the ages of various objects.
- Medical Applications; Radioactive isotopes have numerous medical applications; sterilization of equipment, diagnosing and treating illness and diseases.
- Detection of leaks in building structures
- Irradiation of Food; the radiation emitted by some radioactive substances can be used to kill microorganisms on a variety of foodstuffs, extending the shelf life of these products. etc.
