Exploding shoes. the rain-soaked shoes of a person may explode if ground current from nearby lightning vaporizes the water. the sudden conversion of water to water vapor causes a dramatic expansion that can rip apart shoes. water has density 1000 kg/m3 and requires 2256 kj/kg to be vaporized. if horizontal current lasts 2.09 ms and encounters water with resistivity 172 ω·m, length 15.2 cm, and vertical cross-sectional area 16.7 × 10-5 m2, what average current is required to vaporize the water?

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass