Volume = mass/density
Volume = 15000 g/45 g/cm3 ≈ 333.3 cm<span>3</span>
Answer:

Explanation:
Given that
Wavelength λ=192 nm
So energy of photon,E

Now by putting the values




We know that
Kinetic energy given as




Answer:
<em>The minimum pressure car tire pressure is 300,000 Pa</em>
Explanation:
<u>Pressure</u>
It's a measure of the force exerted by an object per unit surface:

Where F is the force applied on a surface area A.
We are given the total weight of a car with passengers as Ft=30,000 N and we also know the area of contact of each tire with the ground as
.
The minimum pressure each tire can have is when the total weight is evenly distributed in all four tires, thus F=Ft/4=7,500 N.
Calculating the pressure:

P=300,000 Pa
The minimum pressure car tire pressure is 300,000 Pa