Elena (60.0 kg) and madison (65.0 kg) are ice-skating at the rockefeller ice rink in new yok city. their friend tanner sees elena move to the right with a speed of 1.20 m/s towards madison. madison is moving to the left at a speed of 2.50 m/s towards elena. 1. what is elena's momentum? (assume the positive direction is to the right and the negative direction is to the left.) 2, what is madison's momentum? (assume the positive direction is to the right and the negative direction is to the left.) 3. what is the total momentum of elena and madison? 4. when elena and madison collide, they hold onto each other. with what speed and in what direction do both of them move at?
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Awelder using a tank of volume 7.50×10^-2 m^3 fills it with oxygen (with a molar mass of 32.0 g/mol ) at a gauge pressure of 3.30×10^5 pa and temperature of 37.1 ∘c. the tank has a small leak, and in time some of the oxygen leaks out. on a day when the temperature is 23.1 ∘c, the gauge pressure of the oxygen in the tank is 2.00×10^5 pa . a) find the initial mass of oxygen. b) find the mass of oxygen that has leaked out.
Answers: 3
Elena (60.0 kg) and madison (65.0 kg) are ice-skating at the rockefeller ice rink in new yok city. t...
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