Mass is a measure of how much force it will take to change that path. ... Weight, on the other hand, is a measure of the amount of downwards force that gravity exerts on an object. This force increases with the object's mass: the more inertia it has, the harder gravity pulls.
Linear motion (also called rectilinear motion) is a motion along a straight line, and can therefore be described mathematically using only one spatial dimension.
Answer:
Density of the sample will be 13.4 kg/L
Explanation:
We have given volume of the sample 
Mass of the sample 
We have to find the density of the sample
Density of the sample is given by

So density of the sample will be 13.4 kg/L
<span>C. waves can only interfere destructively. </span>
The scientist is likely to be studying kinematics.
Kinematics is the branch of science, specifically physics, which is concerned with the motion of objects without reference to the forces that induce this motion. An example of kinematics is studying the change in velocity of an object over time or the distance covered by an object in a specified amount of time.