Two titanium spheres approach each other head-on with the same speed and collide elastically. After the collision, one of the spheres, whose mass is 375 g, remains at rest. (a) What is the mass of the other sphere? g (b) What is the speed of the two-sphere center of mass if the initial speed of each sphere is 2.20 m/s? m/s Submit Answer View Previous Question Question 4 of 5 View Next Question

Three forces act on a point 2.2 N at 0 degrees, 3.2 N at 90 degrees, and 3.3 N at 7.1 degrees. What is the magnitude of the vertical component of net force?   A. 6.47 B. 5.81 C. 5.47 D. 3.61

1. In the system shown in the figure, m₁ = 18.3 kg, m₂ = 38.2 kg, a = 48.2°, and the coefficient of kinetic friction between the block with mass m₁ and the inclined surface is uk. What coefficient of friction is needed for the hanging block to drop 9.45 m in the first 2.50 s after the system is released from rest? (Hint: it is accelerating downward, so don't treat it like it is moving at a constant speed.) m₁ α m₂

(optional) A skydiver is weighted 72.7 kg, together with his parachute. The acceleration of gravity is 9.80 m/sec². The air resistance force f to the parachute is proportional to the square of velocity, f = bv², with b = 30.0 Nt sec²/m². Find the expression for his falling speed and the numerical value for his landing speed. When he opens the parachute at t = 0, his falling speed is 10 m/s.

A man on the wire singing "Man on a Wire" while practicing for his circus show has reached the center of the rope, creating a dip on the center, creating an angle of 65.24 degrees from the horizontal. If the mass of the man is 67.05 kg and the tension force that can be handled by the wire is 561.56 N, would the wire break? Show the tension caused by the man hanging on the wire.

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نغمة الرنین Two masses m,=5 Kg and m2=5 Kg are connected with string and pulled with a force F=26 N that makes an angle 0 =53° with a smooth horizontal surface as shown in the figure. Find the tension in the string (Newton). m2 A. 3.912 B. 15.65 C. 7.823 D. 11.06 E. None II >

Two masses m1=5 Kg and m2=12 Kg are connected with string and pulled with a force F=25 N that makes an angle of 53° with a smooth horizontal surface as shown in the figure. Find the tension in the string in a unit of Newton. F A. 6.258 B. 8.85 m2 m1 0 C. 2213 D. None E. 4.425

Alice and Bob had car trouble. Their car broke down and Bob could not restart it. Alice got out to push the car and after some time she asked Bob if he would trade jobs with her for a while. Bob answered, "It won't matter if I do. I took physics, and I know that no matter how hard I push on the car, it will push back on me just as hard so I won't accomplish anything. That's Newton's Third Law and it is always true. It has been tested millions of times. It wouldn't matter if I pushed the car. I wouldn't be able to push it anywhere." Aside from the fact that his relationship with Alice is probably fınished, which of the following correctly explains a flaw in Bob's logic? The third law says that the two forces he is talking about are only approximately equal. The third law does not apply in this case because the car is on wheels. O The two forces he is talking about are on two different objects. Thw two forces will not be the same because the two masses are different. The third law only…

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