Graph paper can be effectively used to measure the area of irregular objects...... because the graph consists of small units of 1 into 1 cm.. if an irregular object is kept And drawn over the graph then you can consider those 1 into 1 unit boxes for calculating the surface area. moreover find the thickness of the object then we can find the volume too
Answer:
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Explanation:
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Answer:
A. Hydrogen bonding between water molecules.
Explanation:
Specific heat capacity of water can be defined as the amount of heat a gram of water must lose or absorb in order to change its temperature by a degree Celsius. It is measured in Joules per kilogram per degree Celsius (J/kg°C). Generally, the specific heat capacity of water is 4.182J/kg°C and is the highest among liquids.
Cohesion is a property of water and typically refers to the attraction between molecules of water which holds them together.
The high specific heat and cohesive forces characteristic of water are a result of hydrogen bonding between water molecules. A hydrogen bond is formed in water due to its polarity (opposite charges between water molecules), which causes each water molecule to attract other water molecules. An atom of hydrogen of each water molecule bonds with the electron lone pair on atom of oxygen of a close water molecule.
Answer:
7.06454224 Newtons
Explanation:
C = Drag coefficient = 0.8
ρ = Density of air = 1.204 kg/m³
A = Surface area = 1 m²
v = Velocity of wind = 7 min/mi = 3.83 m/s
The Drag force is given by
The drag force exerted on the runner is 7.06454224 Newtons
Answer:
100 Hertz
1,000 Hertz
10,000 Hertz
Explanation:
Humans can detect frequencies between 20 Hz and 20,000 Hz.