A 12.0-kg package in a mail-sorting room slides 2.00 m down a chute that is inclined at 53.0° below the horizontal. The coefficient of kinetic friction between the package and the chute’s surface is 0.40. Calculate the work done on the package by (a) friction, (b) gravity, and (c) the normal force. (d) What is the net work done on the package? (Hint: Start by setting up a coordinate system and writing the vectors for the displacement and for each force. Then apply the expression for work when a constant force is applied.)
Answers: 3
Physics, 22.06.2019 04:20, marshallmattah
Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz. what wavelength is produced?
Answers: 2
Physics, 22.06.2019 09:30, ayeheavymetal
The graph represents the distance a car travels over time while on the highway. which statement about the car's trip is accurate? a) the car does not move over time. b) the car travels at a constant velocity. c) the car's velocity increases constantly over time. d) the car's velocity decreases constantly over time.
Answers: 1
Physics, 23.06.2019 02:20, addisonrausch
Aman is trying to drag a small tree that he cut down. if the static coefficient of friction of the tree on the ground is 0.5 and the tree weighs 670 n, what is the minimum amount of horizontal force that the man will need to apply so that the tree will start moving? o a. 465 n o b. 230 n o c. 670 n o d. 335 n
Answers: 2
A 12.0-kg package in a mail-sorting room slides 2.00 m down a chute that is inclined at 53.0° below...
Mathematics, 06.02.2021 01:00
Mathematics, 06.02.2021 01:00
Mathematics, 06.02.2021 01:00
Mathematics, 06.02.2021 01:00
Chemistry, 06.02.2021 01:00
Social Studies, 06.02.2021 01:00
Mathematics, 06.02.2021 01:00