Answer:

Explanation:
As we know that the relation between temperature and pressure is a linear relation
so we have

here we know that




now we will have


now if P = 0
then we will have


If the field strength between the plates is 9 volts per cm, then over a path of 1/2cm parallel to the field, the potential changes by (1/2) x (9 volts) = 4.5 volts.
Answer:
The answer an be the option A.
Explanation:
Because radioactive substances have atomic number greater than 82.
Explanation:
Solution,
Volume (v)=287 cm^3
Mass(m)=816 g
Density(d)=m/v
=816/287
=2.84
So, the density of the block of marbles is 2.84 g/cm^3.
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