زهور الجوري
Member
السلام عليكم ورحمة الله وبركاته
هذه مسائل ما عرفت احلها
A solid piece of lead has a mass of 23.94 g and a volume of
2.10 cm3. From these data, calculate the density of lead in
SI units (kg/m3).
In physics it is important to use mathematical approximations.
Demonstrate that for small angles (+20°)
tan , % sin , % , $ #,-/180°
where , is in radians and ,- is in degrees. Use a calculator
to find the largest angle for which tan , may be approximatedy
by sin , if the error is to be less than 10.0%.
One gallon of paint (volume$3.78 ! 10"3 m3) covers
an area of 25.0 m2. What is the thickness of the paint on
the wall?
اتمنى مساعدتي
هذه مسائل ما عرفت احلها
A solid piece of lead has a mass of 23.94 g and a volume of
2.10 cm3. From these data, calculate the density of lead in
SI units (kg/m3).
In physics it is important to use mathematical approximations.
Demonstrate that for small angles (+20°)
tan , % sin , % , $ #,-/180°
where , is in radians and ,- is in degrees. Use a calculator
to find the largest angle for which tan , may be approximatedy
by sin , if the error is to be less than 10.0%.
One gallon of paint (volume$3.78 ! 10"3 m3) covers
an area of 25.0 m2. What is the thickness of the paint on
the wall?
اتمنى مساعدتي
