A 1-lb block and a 100-lb block are placed side by side at the top of a frictionless hill. Each is given a very light tap to beg
1 answer:
You might be interested in
By definition we have to:
Where,
Pabs: absolute pressure
Patm: atmospheric pressure
Pg: gage pressure
The atmospheric pressure is constant and its value is:
Then, by clearing gage pressure we have:
Substituting values we have:
Answer:
If the absolute pressure of a gas is 550.280 kPa, its gage pressure is:
D. 448.955 kPa
Answer:
A)
Explanation:
- In a series circuit, if we assume that each bulb has a resistance R, the equivalent resistance, is the sum of all the resistances, in this case, 3*R.
- The power dissipated in this resistance, can be expressed as follows:
- In the parallel circuit, the equivalent resistance, is equal to 1/3*R.
- The power dissipated in this resistance, can be expressed as follows:
- In order to take the ratio of both powers, we can divide both sides of (1) and (2) , as follows:
- The ratio of power dissipation in the parallel circuit to that in the series circuit is 9 times.