Answer:
The diameter of the hole increases
Explanation:
Metals expand and contract with temperature. Whenever metal is heated, it usually expands in relation to its thermal expansivity. This expansion leads to a slight increase in surface area.
Once the surface area of the metal changes, this means that the dimensions of the whole metal surface changed. As a result, the diameter of the hole drilled in the metal plate will change also. In our case, the diameter of the hole will increase.
The answer is d. Unitary elastic demand means that elastic coefficient=1. In other words, a change in the price of a good causes an equal change in the quantity of demand. The price-demand graph should be an inverse function, where the product of x, y coordinates at any point is constant.
Answer:
acceleration of the particle as a function of time is given as
and position of the particle as a function of time is given as
Explanation:
we have given,
at t=0, s=0
therefore initial velocity,u
u=v=
v=u+at.........(1)
we know from first equation of motion
let acceleration at time t be a(t), and position be x(t)
put value of v,u and a in equation 1
we got,
Therefore,acceleration of the particle as a function of time is given as
and position of the particle as a function of time is given as