Answer:
the magnitude of gravitational force would be 20 N
Explanation:
therefore on a body of mass m by earth is 
where M is the mass of earth m is the mass of body, G is the gravitational constant and r is the distance of seperation from centre of earth.
therefore F =
therefore F = 20 N.
Answer:
Platelets are tiny blood cells that help your body form clots to stop bleeding.
Explanation:
If one of your blood vessels gets damaged, it sends out signals to the platelets. The platelets then rush to the site of damage and form a plug (clot) to fix the damage.
Answer:
A
Explanation:
A solid that dissolves in water produce alkaline solutions
ex. sodium reacts with water to form sodium hydroxide – caustic soda
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