Answer:
Speed of the wreckage = 49.29 km/hr
Explanation:
This question is solved simply by using the conservation of momentum law.
The momentum of the three moving bodies are calculated below:
Momentum of Car 1 : 1100 * 55 = 60500 kg.km/hr
Momentum of Truck : 480 * 37 = 17760 kg.km/hr
Momentum of Car 2 : 1300 * 49 = 63700 kg.km/hr
Total mass of all three vehicles: 1100 + 480 + 1300 = 2880 kg
The final momentum equals the initial momentum if it is conserved. Thus we have the following equation:
Final Momentum = Initial Momentum
Final Velocity * Total mass = Momentum of all three vehicles combined
Final Velocity * 2880 = 60500 + 17760 + 63700
Final Velocity = 49.29 km/hr
The slope and curvature of space time which is being derived from the Einstein's law of gravitation which was modified later it gives three slopes value (-,0,+ )
Answer:2 x 10^-5K^-1
Explanation:
The solution is in the attached file
The pH of the buffer solution is 7.30 for 0.172 m in Hypochlorous acid and 0.131 m in Sodium hypochlorite.
<h3>What is a buffer solution?</h3>
A weak acid and its conjugate base, or a weak base and its conjugate acid, are mixed together to form a solution called a buffer solution, which is based on water as the solvent. They do not change in pH when diluted or when modest amounts of acid or alkali are added to them. A relatively little amount of a strong acid or strong base has little effect on the pH of buffer solutions. As a result, they are employed to maintain a steady pH.
According to the question:
Ka = 3.8×10⁻⁸
pKa = - log (Ka)
= - log(3.8×10⁻⁸)
= 7.42
pH = pKa + log {[conjugate base]/[acid]}
= 7.42+ log {0.131/0.172}
= 7.302
To know more about buffer solutions, visit:
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