A fisherman tries to escape a flash flood by walking up the 10 degree hill. If the water is rising at 0.11 m/s, how fast must he walk to escape the flood? I will give brainliest. Please do not enter an answer if you do know.

If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79

Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false