An ice skater starts with a velocity of 2.25 m/s in a 50.0 degree direction. after 8.33s, she is moving 4.65 m/s in a 120 degree direction. what is the x-component of her acceleration?

What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black

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.

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?