An object with a mass of 10 kg lies on a horizontal surface with friction with a coefficient of static friction of 1.32 and a coefficient of kinetic friction of 0.66. A force of 25 N is applied to it DOWNWARDS, perpendicular to the surface, a force of 13 N is applied to it at an angle of 30 degrees above the horizontal. If another force of 20 N is applied in the x direction, parallel to the surface, what is the amount, or magnitude, of friction acting on the mass, in Newtons

In the future, people will only enjoy one sport: electrodisc. in this sport, you gain points when you cause metallic discs hovering on a field to exchange charge. you are an electrodisc player playing the popular four disc variant. the disks have charges of qa = −8.0 µc, qb = −2.0 µc, qc = +5.0 µc, and qd = +12.0 µc. (1) you bring two disks together and then separate them. you measure the resulting charge of these two disks and find that it is +5.0 µc per disk. which two disks did you bring together? (a) a and b (b) a and c (c)a and d (d)b and c(e) b and d (f) c and d. (2) you bring three disks together and then separate them. you measure the resulting charge of these three disks and find that it is +3.0 µc per disk. which three disks did you bring together? a, b, and c (a) a, b, and d (c) a, c, and d (d) b, c, and d. (3) given the resulting charge of each disk measured in (b) is +3.0 µc, how many electrons would you need to add to a disk of this charge to electrically neutralize it? electrons

If the area of a square has increased by a factor of 16, by how much has each side increased?

The strong nuclear force acts over a small distance than the electrostatic force. true or false