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A 55 kg woman and an 80 kg man stand 14.0 m apart on frictionless ice.
(a) How far from the woman is their CM?
___m
(b) If each holds one end of a rope, and the man pulls on the rope so that he moves 2.2 m, how far from the woman will he be now?
(c) How far will the man have moved when he collides with the woman?
A 15 g rifle bullet traveling 205 m/s buries itself in a 3.4 kg pendulum hanging on a 2.6 m long string, which makes the pendulum swing upward in an arc. Find out the vertical and horizontal components of the pendulum's displacement.
A storm cloud and the ground represent the plates of a capacitor, How much sap in the tree can be boiled away, Model the sap as water initially at 26.0°C
A ghost leaves a thin slime of ectoplasm (n=1.8) on a puddle of water (1.33). When looking down with light shining on the puddle, What is a possible thickness of the slime
The position of an object as a function of time is (3.2t + 1.8t^2)i + (1.7t + 2.4t^2) , where is the time in seconds. Find the magnitude and direction of the object.
A train moving with constant velocity travels 180 meters north in 14 seconds and an undetermined distance to the west. compute the direction of the train's motion relative to north
Heat is another word for thermal energy. Dissimilar materials at the same temperature can contain different amounts of heat.
A long solenoid lying along the x-axis, as shown, has a 0.2 T field inside its coils. What is the magnitude of the magnetic force on the particle
A 1100 kg car carrying four 75 kg people travels over a "washboard" dirt road with corrugations 3.5 m apart. by how much does the car body rise on its suspension
A 250 - ? resistor is connected in series with a 4.80 - ?Fcapacitor. The voltage across the capacitor is vC=(7.60V)?sin[(120rad/s) t ]. Derive an expression for the voltage VR across the resistor
A hungry 161-kg lion running northward at 75.5 km/hr attacks and holds onto a 35.9-kg Thomson\'s gazelle running eastward at 61.4 km/hr. Find the final speed of the lion-gazelle system
You are designing a hydraulic lift for an automobile garage. It will consist of two oil-filled cylindrical pipes of different diameters. What should be the diameter of the pipe under the platform
A bat hits a moving baseball. If the bat delivers a net eastward impulse of 1.5 N-s, what is the mass of the ball
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