A traffic engineer is checking to make sure the lights at an intersection is safe for drivers. The speed limit on the road is 50 m/s and the width of the intersection is 8m. For an average person reaction time is 1 s and an acceleration of -5 m/s^2 he set the yellow light time for 3 s. Compare the GO zone and STOP zone and decide if the intersection is safe for driver.

A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c

The dot diagram represents the motion of the motorcycle as it moves from left to right

A2.0 μf capacitor and a 4.0 μf capacitor are connected in series across a 0.827-kv potential. the charged capacitors are then disconnected from the source and connected to each other with terminals of like sign together. find the voltage across each capacitor.