g Michael and John are playing on a seesaw. Michael has a mass of 25 kg and is sitting to the left, 0.4 m from the center of the seesaw, which is also the center of rotation. John has a mass of 40 kg and is sitting to right of the seesaw. At which distance from the center of the Seesaw should John be sitting so the Seesaw will be in rotational equilibrium (No rotation)? use g=9.8m/s2.
Answers: 2
Physics, 22.06.2019 00:30
Next a skier is pulled by a tow rope up a frictionless ski slope that makes an angle of 15 with the horizontal. the rope moves parallel to the slope with a constant speed of 0.69 m/s. the force of the rope does 800 3 of work on the skier as the skier moves a distance of 8.4 m up the incline. (a) if the rope moved with a constant speed of 2.2 m/s how much work would the force of the rope do on the skier as the skler moved a distance of 8.4 m up the incline? at what rate is the force of the rope doing work on the skier when the rope moves with a speed of (b) 0.69 m/s and (c) 2.2 m/s?
Answers: 1
Physics, 22.06.2019 15:30
At 20βc, 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 12Γ10β6 kβ1 and23Γ10β6 kβ1 respectively.
Answers: 1
Physics, 22.06.2019 16:40
Panel bc in fig. p2.76 is semi-circular, with the 3 meter radius and horizontal straight edge through point b. compute (a) the hydrostatic force of the water on the panel, (b) its center of pressure, and (c) the moment of this force about point b. assume atmospheric pressure on the dry side of the panel
Answers: 3
g Michael and John are playing on a seesaw. Michael has a mass of 25 kg and is sitting to the left,...
History, 03.08.2019 18:30
English, 03.08.2019 18:30
Mathematics, 03.08.2019 18:30
Chemistry, 03.08.2019 18:30
Chemistry, 03.08.2019 18:30
History, 03.08.2019 18:30