A very long aluminum wire has a radius of 1 cm and a uniform charge density σ = 6 x 10^-5 C/m² over its area. 1. What is the charge on 1 m of this wire?

2. What is the linear charge density of the wire?

3. What is the electric field at a point 7.8 cm away from the surface of the wire?

Which is not a source of noise pollution? a)airplanes b)acid rain c)machines d)cars

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.

What pressure difference is required between the ends of a 2.0-m-long, 1.0-mm-diameter horizontal tube for 40 c water to flow through it at an average speed of 4.0 m/s?