Answer:
Explanation:
Object is Floating in a liquid
weight of object is equal to weight of displaced fluid
i.e.
i.e.
where V and V' is the volume of object and volume of object inside the liquid.
therefore mass of liquid displaced must be equal to mass of object
Answer: C. physical fitness components
Explanation:
The physical activities includes daily activities which are part of daily routine. These include exercise, cooking, walking and others.
The physical fitness components can reduce the risk of beginning of the diseases and they will promote total health. These include cardiovascular endurance which provide safety against the heart diseases, muscular strength will allow the body to perform daily activities without any difficulties, flexibility, and body composition. The body composition will help to keep the body in proper shape.
Answer:
The problem with her grandfather's eye can be long sightedness and short sightedness
Explanation:
Given that,
Mona's grandfather had been complaining of poor vision for many days.
We know that,
Refractive eye surgery is small surgery.
We need to find the problem with her grandfather's eye
Using given data,
Mona's grandfather had been complaining of poor vision for many days.
So, the doctor did refractive eye surgery of her grandfather's eye.
Due to this surgery, Mona's grandfather can see things clearly.
Refractive eye surgery is a method for correcting vision.
This surgery used for better vision.
This surgery is possible for long sightedness and short sightedness.
Hence, The problem with her grandfather's eye can be long sightedness and short sightedness
Answer:
The heat loss is 
Explanation:
From the question we are told that
The thickness is 
The inner temperature is 
The outer temperature is 
The length of the window is L = 1 m
The width of the window is w = 3 m
Generally the heat loss is mathematically represented as
Where k is the thermal conductivity of glass with value 
and A is the area of the window with value
substituting values
