Two charges, q1 = 3 X 10^-6 C and q2 = 3 x 10°C, are connected by an insulating rod 10 m long. The rod is pivoted about its midpoint. The rod is kept horizontal 10 cm above the floor. Two identical charges, q = 5 x 10^-6 C, are fixed directly below q1 and q2, as shown Where should a 3-kg weight be placed on the rod. keep the rod horizontal? ​

Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 10° f. after one-half minute the thermometer reads 60° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) ° f how long will it take for the thermometer to reach 30° f? (round your answer to two decimal places.)

An owl dives toward the ground with a constant velocity of 4.40 m/s at 53.0° below the horizontal. the sun is directly overhead and casts a shadow of the owl directly below it. what is the speed (in m/s) of its shadow on level ground?

The built in flash in a compact camera is usally capable of giving correct exsposure for distance up to how many meters?