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Gravity, height, and rock falling problem - Please help ASAP
A rock dropped from a cliff covers one-third of its total distance to the ground in the last second of its fall. Air resistance is negligible. How high is the cliff?
Physics problem dealing with echolocation and a doppler type effect - Please help ASAP
Bats use echolocation to determine their distance from objects they cannot easily see in the dark. The time between the emission of a high-frequency sound pulse (a click) and the detection of its...
A train, a late passenger, and related velocities - Please help ASAP
A train pulls away from a station with a constant acceleration of 0.37 m/s2. A passenger arrives at a point next to the track 6.1 s after the end of the train has passed the very same point. What...
An average velocity question dealing with a relay race - Please help ASAP
The cheetah can run as fast as 113 km/h, the falcon can fly as fast as 161 km/h, and the sailfish can swim as fast as 105 km/h. The three of them run a relay with each covering a distance L at maximum...
Trying to program an RPM Gauge
I've an RPM Gauge that spins the needle from 0 - 90 degrees, with the needle towards bottom at 0, spinning to the left towards -90, and up towards 180. It has to accurately reflect around 1 to 8000...
