Aball is thrown at a 60.0 ° angle above the horizontal across level ground. it is thrown from a height of 2.00 m above the ground with a speed of 20.0 mis and experiences no appreciable air resistance. the time the ball remains in the air before striking the ground is closest to?

Would corn syrup, molasses, or pancake syrup make a good lubricant in a car engine? explain your answer.

Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?

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.