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Calculate Formula for Physics And put Km to Dm
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NatuurkundeThe unit of mass is the kilogram (kg). Various larger and smaller units are derived
from the kilogram, such as the ton (t), the gram (g) and the milligram (mg).
Remember:
• 1 t = 1000 kg
• 1 kg = 1000 g
• 1 g = 1000 mg
Calculate the volume of a roll of biscuits. The roll is 20 cm long and has a
diameter of 11.2 cm. Round the answer off to a whole number.
given:
r = 11.22 = 5.6 cm
h = 20 cm
required:
V=?
working:
V = π · r2 · h
= π × (5.6) 2 · 20
= 1970 cm 3
The volume of an irregularly shaped object such as a pebble can be determined by
the immersion method. It works like this:
1 Fill a measuring cylinder with water to a given level.
2 Read the level of the water.
This is called the starting level.
3 Lower the object carefully into the water.
The object must be completely submerged.
4 Read the level of the water again.
This is called the final level.
5 Calculate the final level minus the starting level.
This is the volume of the object.
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