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Two positively charged skaters, Stacy and Bob, are traveling straight towards each other on frictionless ice. Consider them to be point charges. When they are 5.0 m apart, Stacy feels an attractive electric force of 2.2 N towards Bob. (a) What is the magnitude of the attractive force that Bob feels from Stacy? (b) The magnitude of Stacy's charge is twice as much as Bob's. What is the magnitude of Bob's charge? (c) Bob has twice the mass that Stacy does. At the instant that they are 5.0 m apart, from Bob's reference frame, Stacy appears to be moving towards him with an acceleration of 7.3×10-2 m/s2. Find Stacy's mass.
Consider a cargo ship, with a mass of 5.0×10^8kg . If it is pushed by a tugboat motor (force 8.0×10^6 N), what will be the magnitude of its acceleration
question1astronomers detect a large asteroid that far away but still heading toward earth at 754 ms. a straight
There is a uniform charge distribution of ?= 7.90 * 10^-8 C/m along a thin wire of length l=5.58 cm. Find the magnitude of the electric field at the center of the semicircle
a series rlc circuit consists of a 260 ohms resistor a 2810-6 h inductor and a 1710-6 f capacitor. what is the rms
consider two masses m1 and m2 at the top of two frictionless inclined planes. both masses start from rest at the same
An 845-N sled is pulled a distance of 170 m. The task requires 1.10 x10^4 J of work and is done by pulling on a rope with a force of 12N. At what angle is the rope held.
An elastic conducting material is stretched into a circular loop of 16.1 cm radius. What emf is induced in volts in the loop at that instant
An LC circuit has a 7.88 mH inductor. The current has its maximum value of 0.73 A at t=0 s, What is the value of the capacitance
You want to shoot a 19cm long arrow parallel to this axle and through the wheel without hitting any of spokes. Suppose that the arrow and the spokes are very thin.
two balls A and B are thrown from the top of a vertical cliff. Ball A is thrown horizontally reaching the ground in 3.5 s. what is the height of the cliff
A positron is a particle with the same mass and magnitude charge as an electron, but a positron has a positive charge. how fast is the positron moving
Small spheres of diameter 1.03 mm fall through 20°C water with a terminal speed of 1.00 cm/s. Calculate the density of the spheres
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