The air leaving through the balloon's mouth pulls the balloon in the same direction as the exiting air, so the balloon experiences a net force. All air surrounding the balloon pushes the balloon forward.
Explanation:
Maybe your phone is being slow. Turn of your data and turn it back on
ANSWER:
Your best bet would be to either contact apple support or to factory reset the iphone
Answer:
a
Explanation:
Waterjet cutting uses a very-small-diameter jet of water that exits the cutting nozzle at approximately the speed of sound. A water jet cutter, is oftentimes simply called a water jet is an industrial tool, like its name suggests, with the capabilities of cutting a different types of materials. Like its name suggests again, it uses water, although an extremely high-pressure jet of water to do the cutting. Other times, it uses a mixture of water and an abrasive substance to facilitate the cutting.
Work done = -19.7 KJ
Heat transferred = 17.4 KJ
Explanation:
Given-
Temperature, T = 27°C
Volume, V = 0.2 m³
Pressure, 
= 1 bar
= 4 bar
pV¹°¹ = constant
From superheated propane table, at = 1 bar and
= 27⁰C
= 0.557 m³/kg
= 473.73 KJ/kg
(a) Work = ?
We know,
V1¹°¹ = p2V2¹°¹
At = 4 bar and v = 0.158 m³/kg
u2 = 548.45K J/kg
To find work done in the process:
(b) Heat transfer = ?
