Physics, 14.12.2021 14:00, treyvoniskewl
A uniform mental bar, one meter long ,is placed symmetrically on two knife edges separated by a distance of 64.2cm .when two weights of 0.5kg each are suspended from points 5cm from the two ends respectively, the mid-point of the bar is elevated by 0.75 mm. calculate young's modulus of the material of the bar if the width of the bar is 2.2cm and its thickness 0.62 cm ?
Answers: 3
Physics, 21.06.2019 18:10, Alexmills6093
Keneila is attempting to ski down a 20 m high friction free hill for the first time. she has a speed 10 m/s at the top. what is her kinetic energy when she is a the bottom, 20 m ? (a)2500 j (b)9800 j (c)12300 j (d)3100j (e)15000j
Answers: 2
Physics, 21.06.2019 22:50, josmanu235
Calculate the heat capacity per object when the total energy is 4 quanta. (think of this in terms of increasing from 3.5 quanta of energy in the system to 4.5 quanta of energy in the system, if that were possible.) c4 = __ j/k/object
Answers: 2
Physics, 22.06.2019 10:00, ceasar6071
Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?
Answers: 1
A uniform mental bar, one meter long ,is placed symmetrically on two knife edges separated by a dist...
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