Three boxes with masses m1= 1.5 kg, m2= 5.9 kg and m3= 7.9 kg are in contact with one another on a smooth frictionless surface, pushed by a 46 N force F⃗ pushF→push.  What is the magnitude of the acceleration of block 1?  6.22 m/s2m/s2  3.01 m/s2m/s2  4.69 m/s2m/s2  30.7 m/s2m/s2 How does the size of the normal force that 2 pushes on 1 with compare with the size of the normal force that 1 pushes on 2 with?  2 pushes on 1 more than 1 pushes on 2  2 pushes on 1 less than 1 pushes on 2  2 pushes on 1 just as much as 1 pushes on 2

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.