An airplane has a mass of 2.50 × 10^4 kg and takes off under the influence of a constant net force of 1.98 × 10^4 n. what is the net force that acts on the plane's 71-kg pilot?

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.

Based on this activity, is kinetic energy always transformed into potential energy?