Answer:
I believe it's the lowest portion of the atmosphere
Answer : The correct answer is 74.83 m/s .
The kinetic energy is energy possessed by any mass which is moving or have some speed . It is product of mass and velocity . It is expressed as :
Where KE = kinetic energy in J or 
m = mass in Kg v = speed in m/s²
Unit of KE is Joules (J) .
Givne : KE = 2100 J mass = 0.75 kg v = ?
Plugging value in KE formula =>
Dividing both side by 0.375 kg =>
Answer:
1 L
Explanation:
Use Boyle's Law, which is defined as:
p1v1 = p2v2
p1 = 3atm
v1 = 5.2L
p2 = 15atm
v2 = ?
We are solving for v2 because all other variables are given.
p1v1 = p2v2
(3atm)(5.2L) = (15atm)(v2)
v2 = (3)(5.2) / (15) = 1.04 L ≈ 1 L
Answer:
At the second equivalent point 200 mL of NaOH is required.
Explanation:
at the first equivalent point:
H2A + OH- = HA- + H2O
initial mmoles y*100 y*100 - -
final mmoles 0 0 y*100 y*100
at the second equivalent point:
HA- + OH- = A2- + H2O
initial mmoles y*100 y*100 - -
final mmoles - - y*100 y*100
at the second equivalent point we have that y*100 mmoles of NaOH or 100 mL of NaOH ir required, thus:
at the second equivalent point 200 mL of NaOH is required.
