Answer:
750 kg.m/s
Explanation:
Momentum is the product of mass and velocity in kg.m/s.
In this case, initial momentum⇒p=m × v where m is mass and v is velocity
initial mass of car m₁=100 kg
Initial velocity of car v₁=5 m/s
Initial momentum= 100×5= 500 kg.m/s
New mass after picking two extra people m₂= 150 kg
Velocity stays the same v₂=v₁= 5 m/s
New momentum= m₂× v₂
p=150×5=750 kg.m/s
If an oncomimg car has high beams on and doesn't dim them, blink your highbeams once to signal them to turn their highbeams off.
<span>Molecules themselves</span>
Answer:
D. 5
Explanation:
![\mathbf{pH=-log_{10}[H^{+}]}](https://tex.z-dn.net/?f=%5Cmathbf%7BpH%3D-log_%7B10%7D%5BH%5E%7B%2B%7D%5D%7D)
The above formula is used to find pH of any solution. For that you require the concentration of 
or hydronium ion (
) in the solution. Concentration should be in molarity (M) to get the pH.
The concentration of ion is given as 0.00001 M or 
M.
Substituting the value of ion in the formula:
![\textrm{pH}=- \textrm{log}_{10}[10^{-5}]](https://tex.z-dn.net/?f=%5Ctextrm%7BpH%7D%3D-%20%5Ctextrm%7Blog%7D_%7B10%7D%5B10%5E%7B-5%7D%5D)
![\textrm{pH}=-(-5)\textrm{log}_{10}[10]](https://tex.z-dn.net/?f=%5Ctextrm%7BpH%7D%3D-%28-5%29%5Ctextrm%7Blog%7D_%7B10%7D%5B10%5D)
(NOTE : Some logarithmic properties
here 'b' is called the base of log and '
' is called dthe argument of log. In the solution the base is '10' and the argument is 
)
