Answers: 2
Physics, 22.06.2019 02:00
The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s
Answers: 3
Physics, 22.06.2019 14:00
If element x has 99 protons how many electrons does it have
Answers: 1
Physics, 22.06.2019 14:30
Which one of the following terms is used to indicate the natural tendency of an object to remain at rest or in motion at a constant speed along a straight line? velocity acceleration equilibrium force inertia
Answers: 2
Physics, 22.06.2019 15:30
At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.
Answers: 1
collisions occur whenever kinetic energy is not conserved, primarily when an object's height is incr...
Mathematics, 09.04.2021 08:30
History, 09.04.2021 08:30
History, 09.04.2021 08:30
Mathematics, 09.04.2021 08:30
Mathematics, 09.04.2021 08:30
English, 09.04.2021 08:30
Chemistry, 09.04.2021 08:30
Arts, 09.04.2021 08:30
Mathematics, 09.04.2021 08:30
Mathematics, 09.04.2021 08:30