two boys of masses 30 kg and 45 kg sits at the end a and b respectively of an adjnotable see saw of lengjt 10cm find the distance from the end B that the see saw must be pivoted so that the two ways will maintain a balance of the weight of the see saw is disregarded
Answers: 2
Physics, 22.06.2019 06:50
What is the stall speed at sea level of an airplane that weights 10000 lbs., has a wing area of 300ft^2, and a maximum lift coefficient of 1.4? what is the stall speed if flaps that double cl,max are applied?
Answers: 1
Physics, 22.06.2019 11:20
The ultracentrifuge is an important tool for separating and analyzing proteins. because of the enormous centripetal accelerations, the centrifuge must be carefully balanced, with each sample matched by a sample of identical mass on the opposite side. any difference in the masses of opposing samples creates a net force on the shaft of the rotor, potentially leading to a catastrophic failure of the apparatus. suppose a scientist makes a slight error in sample preparation and one sample has a mass 10 mg larger than the opposing sample. if the samples are 12 cm from the axis of the rotor and the ultracentrifuge spins at 70,000 rpm, what is the magnitude of the net force on the rotor due to the unbalanced samples? ( be thorough on your answer)
Answers: 3
Physics, 23.06.2019 01:30
The field lines around one end of a bar magnet are shown below based on the diagram, what can you conclude about the pole of the magnet? a.is a south pole because the field hnes spread out from this end b.a north pole because the field lines spread out from this end c.a nouth pole because the field lines enter the magnet at this end d.is a north pole because the field lines enter the magnet at this end
Answers: 1
two boys of masses 30 kg and 45 kg sits at the end a and b respectively of an adjnotable see saw of...
Law, 23.04.2020 07:39
Mathematics, 23.04.2020 07:39
History, 23.04.2020 07:39
Mathematics, 23.04.2020 07:39
History, 23.04.2020 07:39
Chemistry, 23.04.2020 07:39
Mathematics, 23.04.2020 07:39
Chemistry, 23.04.2020 07:39
Social Studies, 23.04.2020 07:40
English, 23.04.2020 07:40
Mathematics, 23.04.2020 07:40
Mathematics, 23.04.2020 07:40