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It is believed that a large electric fish known as Torpedo occidentalis uses electricity to shock its victims. A typical fish can deliver a potential difference of 0.10 kV for a duration of 1.7 ms. This pulse delivers charge at a rate of 18 C/s.
(a) What is the rate at which this work is done by the electric organs during a pulse?
(b) What is the total amount of work done during one pulse?
A 0.160 kg croquet ball makes an elastic head-on collision with a second ball initially at rest. The second ball moves off with half the original speed of the first ball. What is the mass of the second ball
q1. as part of a safety investigation two 1300kg cars traveling at 18ms are crashed into different barriers. find the
What is the electric field strength between the disks? A proton is shot from the negative disk toward the positive disk. What launch speed must the proton have to just barely reach the positive disk?
Particles of charge Q1 = +69 µC, Q2 = +51 µC, and Q3 = -80 µC are placed in a line, Calculate the net force on each charge due to the other two
A playground is on the flat roof of a city school, 5 m above the street below (see figure). The vertical wall of the building is h = 6.20m high, to form a 1.20 m high railing around the playground.
At , a 650g mass at rest on the end of a horizontal spring (126N/m ) is struck by a hammer, which gives the mass an initial speed of 2.82m/s , Determine the period and frequency of the motion
A disk with mass m = 8.8 kg and radius R = 0.38 m begins at rest and accelerates uniformly for t = 17.2 s, to a final angular speed of ? = 33 rad/s. What is the moment of inertia of the disk
The right-side rearview mirror of Mike's car says that objects in the mirror are closer than they appear. What is the focal length of the rearview mirror
The 230,000 lb space-shuttle orbiter touches down at about 220 mi/hr. find the corresponding distance (in feet) traveled by the orbiter
A straight, stiff, horizontal wire of length 30 cm and mass 60 g is connected to a source of emf by light, flexible leads. A magnetic field of 1.5 T is horizontal and perpendicular to the wire. Find the current necessary to float the wire; that is, f..
The potential difference between two parallel conducting plates in vacuum is 475 V, What is the kinetic energy of the alpha particle when it reaches the other plate
A single force acts on a 4.4 kg particle-like object in such a way that the position of the object as a function of time is given by x = 3.8t - 4.6t2 + 1.3t3
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