3.) an engineer is designing the runway for an airport. of the planes that will use the airport,
the lowest acceleration rate is likely to be 3 m/s2. the takeoff speed for this plane will be 65
m/s. assuming this minimum acceleration, what is the minimum allowed length for the
runway?

Agas is contained in a vertical, frictionless piston–cylinder device. the piston has a mass of 3.2 kg and a cross-sectional area of 35 cm2. a compressed spring above the piston exerts a force of 190 n on the piston. if the atmospheric pressure is 95 kpa, determine the pressure inside the cylinder.

If a simple machine reduces the strength of a force, what must be increased?

Apatient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused this symptom?