I don’t know jsnshanhs shznjs
Scientist rely on their estimates when they cannot obtain on exact numbers
Kinetic energy=1/2*mass*velocity²
=1/2*291*49
=7129.5 Joules
PH = -log [H+]
pH = -log (1.0x10^-4) = -(-4) = 4 or A
Answer:
<h2>Density = 0.75 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula

From the question
mass = 450 g
volume = 6.0 × 10² mL
Substitute the values into the above formula and solve for the density
That's

We have the final answer as
<h3>Density = 0.75 g/mL</h3>
Hope this helps you