Jim shorts and his friend, brock lee, are competing against each other in a 100 meter sprint. jim said he ran the race in 42 seconds, and brock said he ran the race in 4−2 seconds. who is lying? how do you know? explain.

Based on the figures as marked, /\rqs = —

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)

Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept