A box of mass 60 kg is at rest on a horizontal floor that has a static coefficient of friction of 0.6 and a kinetic coefficient of 0.25
a)The minimum force necessary to start moving the box
b) The friction force and the acceleration of the box if a horizontal force of 400 N is applied
Answers: 3
Physics, 22.06.2019 23:00, thickbeanpapi
Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10 m/s west, while horse b is traveling with a velocity of 13 m/s west. which horse had a greater acceleration? a. horse a because its change in velocity was greater than horse b's in the same time. b. horse b because its change in velocity was greater than horse a's in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.
Answers: 1
Physics, 23.06.2019 02:00, ericka79
Estimate the kinetic energy of mars with respect to the sun as the sum of two terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. (assume mars is a uniform sphere with mass = 6.4×10 to the power of 23 kg, radius = 3.4×10 to the power of 6 m, rotation period = 24.7 hours, orbital period = 686 days and is 2.3×10 to the power of 8 km from the sun.)
Answers: 2
Physics, 23.06.2019 09:00, peternice2956
Choose the correct general statement concerning the total potential and kinetic energy at any point along the arc of swing. the total energy at any point along the arc of swing of the pendulum is always less than 12 joules. the total energy at any point along the arc of swing of the pendulum is always more than 12 joules. the total energy at any point along the arc of swing of the pendulum is always equal to 12 joules. not enough information to determine
Answers: 1
A box of mass 60 kg is at rest on a horizontal floor that has a static coefficient of friction of 0....
Chemistry, 29.07.2019 11:50
English, 29.07.2019 11:50
Health, 29.07.2019 11:50
History, 29.07.2019 11:50
Computers and Technology, 29.07.2019 11:50
Business, 29.07.2019 11:50
History, 29.07.2019 11:50
English, 29.07.2019 11:50
Computers and Technology, 29.07.2019 11:50
Social Studies, 29.07.2019 11:50