Answer:
Density is determined by an object's mass and volume.
Explanation:
If two objects take up the same volume, but one has more mass, then it also has a higher density.
Answer:
Explanation:
Given
mass of block 
at 
displacement is 
velocity 
acceleration 
suppose 
is the general equation of SHM
where A=amplitude
=natural frequency of oscillation
therefore velocity and acceleration is given by
for t=0
divide 1 and 3 we get
Now square and 1 and 2 we get
Answer: C
Explanation:
Convective heat transfer, or convection, is the transfer of heat from one place to another by the movement of fluids, a process that is essentially the transfer of heat via mass transfer.
Answer:
c) mutation and natural selection both cause changes in a population
Explanation:
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One scientist proposes an idea and other scientists repeat his or her experiments so they can Accept the Idea.
