A horizontal force of 160 N is used to push a 55.0-kg packing crate a distance of 8.00 m on a rough horizontal surface. If the crate moves at constant speed, find (a) the work done by the 160-N force and (b) the coefficient of kinetic friction between the crate and surface. Please show your work not only answer.

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.

If you put a helium-filled balloon in the refrigerator, what will happen?

Aproduction line at v. j. sugumaran's machine shop has three stations. the first station can process a unit in 7 minutes. the second station has two identical machines, each of which can process a unit in 16 minutes (each unit only needs to be processed on one of the two machines). the third station can process a unit in 10 minutes. ▼ is the bottleneck station, with a bottleneck time of nothing minutes per unit (enter your response as a whole number).