Could someone with these two answers ? if the air inside a balloon exerts a force of 1.5 n on an area of 0.5 m², what is the pressure inside the balloon? a. 0.5 n/m² b. 1.5 n/m² c. 2.5 n/m² d. 3 n/m² as your airplane takes off from an airstrip on the ground and rises 30,000 feet into the sky, what happens to the air pressure on the outside of the airplane? a. the air pressure decreases. b. the air pressure increases. c. the air pressure stays the same. d. more information is needed.,

It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (for example, would the velocity of a neutral particle be selected by passage through this device? ) the explanation of this is that the mass and the charge control the resolution of the device--particles with the wrong velocity will be accelerated away from the straight line and will not pass through the exit slit. if the acceleration depends strongly on the velocity, then particles with just slightly wrong velocities will feel a substantial transverse acceleration and will not exit the selector. because the acc