Answer:
7.65 m
Explanation:
= Initial pressure = 0.03 atm
= Final pressure = 1 atm
= Inital radius = 21 m
= Intial volume of gas = 
= Final volume of gas = 
= Initial temperature = 200 K
= Final temperature = 323 K
From ideal gas law we have

The radius at liftoff is 7.65 m
Answer:
Great question! To solve this problem you just need a bit of simple math. The short answer is 60 m/s
Explanation:
To solve this, you must first set up your equation.
540km/2.5hr * 1000m/3600s
You would set it up this way because there are 1000 meters in a km and 3600 seconds in an hour. This
540000m/9000s
This simplifies down to
60m/s
Answer:
A body is abandoned and it is observed that after 4 s it touches the ground. How high was it released?
Answer:
0.025 Meters a second, or 0.025 m/s
Explanation:
So, if we take the information that we know, 1) The wall is 2 meters thick, and 2) it took a total of 0.05 seconds to travel all the way. So, to get our answer, lets divide 0.05 by 2. That lands us with 0.025! This answer makes sense, because we know that sound travels quickest in solids, (Due to sound-waves being a mechanical longitudinal wave, and solids have the densest particle formations, allowing the sound wave to travel swiftly compared to liquids and gases, in which the particles are more spread out.)
Answer: The pattern of the battery is wrong, the bulb is broken , the wires of the circuit is broken , the switch is not closed .