To practice problem-solving strategy 28.1 magnetic-field calculations. consider a current-carrying wire of length l carrying a current of magnitude i from left to right. what is the magnetic field contribution dbâ at point p, with coordinates (x, y), due to the current element dlâ at point a, with coordinates (a,0)? assume that y is positive.

Consider two metallic rods mounted on insulated supports. one is neutral, the other positively charged. you bring the two rods close to each, but without contact, and briefly ground the the neutral rod by touching it with your hand. show answer correct answer what would be resulting charge (if any) on the initially neutral rod

Akg a of 55 m at an of 11 ? . if is at 98 km/h,be ?

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.