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Figure shows a plot of the net positive charge flowing in a wire versus time. Sketch the corresponding current during the same period of time.
A 200-kg roller coaster car travels over the top of a 40-m high hill (Hill A) traveling at 10 m/s. find the speed of the car at the top of the second hill
An electron in a cathode ray tube (CRT) accelerates from 2.00 " 104 m/s to 6.00 " 106 m/s over 1.50 cm. (a) How long does the electron take to travel this 1.50 cm?
A car travels at a speed of 29 m/s around a curve of radius 67 m. What is the net centripetal force required to keep the car from skidding sideway.
an electron with speed of 3.00x105 ms moves into a uniform electric field of magnitude 4.00x103 nc. the field is
on the apollo 14 mission to the moon astronaut alan shepard hit a golf ball with a golf club improvised from a tool.
An electron in the hydrogen atom makes a drop from n = 3 to m = 2. What wavelength of photon is emitted
an atom is ionized so that it has only one electron. when the electron drops from the n 4 shell to the n 1 shell an
In an integrated circuit, the current density in a 3.0??m?thick× 80 ??m?wide gold film is 7.9×105A/m2. How much charge flows through the film in 15 min
A professor's office door is 0.9 wide, 2.2 high, 4.2 thick; has a mass of 23 , and pivots on frictionless hinges. A "door closer" is attached to door and the top of the door frame. while the door is open and at rest, the door closer exerts a torqu..
A charge of 20 nC is uniformly distributed along a straight rod of length 4.0 m that is bent into a circular arc with a radius of 2.0 m
Two children are carrying a 2.00-m long uniform level board with a mass 5.00 kg, What is the force applied by the child that is closer to the book to support the board
A 16 kg rock, m, is on the edge of a 90 m cliff, h, as shown in Figure 11-20. Assume that air resistance is negligible. What speed does the rock have as it strikes the ground
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