Aturntable rotates counterclockwise at 76 rpm . a speck of dust on the turntable is at 0.45 rad at t=0. what is the angle of the speck at t = 8.0 s ? your answer should be between 0 and 2ï rad.

Considering only the earth's rotation, determine how much later the asteroid would have had to arrive to put the explosion above helsinki at longitude 25˚ e? this would have obliterated the city.

The force it would take to accelerate an 900-kg car at the rate of 6m/s2

Students in an introductory physics lab are performing an experiment with a parallel-plate capacitor made of two circular aluminum plates, each 11 cm in diameter, separated by 1.0 cm. how much charge can be added to each of the plates before a spark jumps between the two plates? for such flat electrodes, assume that value of 3×106n/c of the field causes a spark.