Given data:
Volume of calcite (V) = 15 cm³,
mass of calcite (m) = 40.5 g,
find the
density of calcite (ρ) = ?
density is defined as " it is the amount of matter of an object in a given volume". Simply it is the ratio of matter in an object to its volume. The unit of density is kg/m³ in SI system or g/cm³ in CGS system.
Mathematically,
density ( ρ) = mass/volume
= m/V g/cm³
= 40.5 g/15 cm³
= 2.7 g/cm³
Hence, the density of calcite is <em>2.7 g/cm³ </em>
Answer:
an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host.
"a virus infection"
Explanation:
google?
Answer:
The force is Centripetal force
Explanation:
We need to calculate the time it had travelled first:
9:00 to 12:00 = 3 hours.
12:00 to 2:00 = 2 hours
Total travel time = 5 hours.
The formula for speed is distance ÷ time (Hence, the unit for speed is m/s, kph, mph, etc.)
= 629km ÷ 5 hours
= 125.8 km/hour ~ 125.8kph
