Physics, 29.01.2020 15:48 itsyaboiamo
Ahot iron ball of mass 200 g is cooled to a temperature of 22°c. 6.9 kj of heat is lost to the surroundings during the process. what was the initial temperature of the ball? (ciron = 0.444 j/g°c)
Answers: 1
Physics, 21.06.2019 19:30
A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?
Answers: 1
Physics, 22.06.2019 14:30
Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.
Answers: 2
Physics, 22.06.2019 16:00
Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.
Answers: 2
Physics, 22.06.2019 17:00
What equation is used to calculate the weight of an object on a plant ?
Answers: 1
Ahot iron ball of mass 200 g is cooled to a temperature of 22°c. 6.9 kj of heat is lost to the surro...
Mathematics, 04.02.2020 00:54
History, 04.02.2020 00:54
Mathematics, 04.02.2020 00:54
Arts, 04.02.2020 00:54
Biology, 04.02.2020 00:54
Mathematics, 04.02.2020 00:55
Chemistry, 04.02.2020 00:55
English, 04.02.2020 00:55
History, 04.02.2020 00:55
Physics, 04.02.2020 00:55
Biology, 04.02.2020 00:55
Mathematics, 04.02.2020 00:55