A balloon has been rubbed with wool to give it a charge of -2.0 x 10-6 C. A plastic tube with a charge of +3.0 x 10-6 C is held at a distance of 0.40 m above the balloon. Determine the electrical force of attraction between the tube and the balloon.

Along, straight wire with 3.0 a current flowing through it produces magnetic field strength 1.0 t at its surface. if the wire has a radius r, where within the wire is the field strength equal to 36.0% of the field strength at the surface of the wire? assume that the current density is uniform throughout the wire

What describes the formation of horizon b? a. forms at the surface b. features parent material c. undergoes the most change d. forms due to decomposed material i think the answer is c. undergoes the most change

which statements describe the image? check all that apply.the wood is releasing argon gas.this information is useful for dating ancient rock.the process works only with organic matter.the element has a half-life of 5,730 years.this shows the half-life of carbon-19.