A60-kg box is being pushed a distance of 7.9 m across the floor by a force upper poverscript right-arrow endscripts ⁢ whose magnitude is 194 n. the force upper poverscript right-arrow endscripts ⁢ is parallel to the displacement of the box. the coefficient of kinetic friction is 0.23. determine the work done on the box by each of the four forces that act on the box. be sure to include the proper plus or minus sign for the work done by each force.

Using a pedometer, you walk 3000 steps in 20 minutes, so your speed is 150 steps/min. each of your steps is 0.7 m long. what is your speed? 150 steps/min=/s=/h

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig