In two experiments, Objects A and B, which have like electric charges, are set near each other. Each has a mass of 1.0 kg. Object A is then held in place, while B is allowed to accelerate away under the influence of the strong repulsive electric force between the objects: Experiment #1: +2 A Experiment #2: A B y = +1->> B In Experiment #1 Object B eventually reaches a velocity of 2.5 m/s. Calculate the velocity Object B eventually reaches in Experiment #2. You may assume there is no friction of any kind on B. Round your answer to 2 significant digits, and be sure it contains an appropriate unit symbol. 11 0.0 Notice that in Experiment #2 Object B starts off closer to Object A. The gray grid is not part of the experiments, it's just drawn to help you measure the distance between the objects. X 1 00 5 S

Thor drops his hammer with a mass equal to 300 billion elephants off of Stark Tower (425 m). How fast will it be traveling just before it strikes the ground? part b - Tony Stark drops his lucky penny at the same time. How fast will his lucky penny be traveling just before it strikes the ground?

Which of the following differential equations is the correct model if up is the positive direction? Consider an object of mass m that was thrown upwards and the magnitude of the force due to air resistance is 2v where v is the speed of the object in meters per second.  pick (1) mv′=−mg−2v mv′=−mg+2v mv′=mg+2v mv′=mg−2v

A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 740 N on him. The mass of the losing player plus equipment is 88 kg, and he is accelerating at 1.8 m/s2 backward. Randomized Variables: f = 740 Nm1 = 88 kgm2 = 118 kga = 1.8 m/s2                                                        1. What is the magnitude of the force of friction, in newtons, between the losing player's feet and the grass as he slides backwards? F1 =                           2. What is the magnitude of the force, in newtons, that the winning player exerts on the ground to move forward if his mass plus equipment is 118 kg? Assume the second player has the same acceleration as the first. F2=