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An electron is released from rest at a perpendicular distance of 10.8 cm from a line of charge on a very long nonconducting rod. That charge is uniformly distributed, with 8.1 μC per meter. What is the magnitude of the electron's initial acceleration?
A massless spring hangs from the ceiling. How much does its potential energy increase, if a mass is attached to it
A fish swimming in a horizontal plane has a velocity vi = (3.3i + 1.6j) m/s at a point in the ocean where the position relitive to a certian rock is ri = (10.5i - 3.9j) m. After the fish swims with a constant acceleration for 20.6 s, it's velocity..
A capacitor is used as energy storge device. the material between the plates of the capacitor has a certain resistance leading to a gradual slef-discharge. What is the fraction of the initial energy lost in the first hour
A 1.6-kg book is at rest on a wooden board inclined at 12 degrees. Find the magnitude of each force
An inductor L = 0.0470 H and a 35.0 ? resistor are connected in series to a 3.70 volt battery and a switch. What is the potential difference across the resistor immediately after the switch is closed
a 9.5-uC charge is at x = 15 cm, y = 5.0 cm and a -3.2-uC charge is at x = 4.4 cm, y = 11 cm. Find the force on the negative charge
Water (which can be considered to be an ideal fluid for this question) flows at a rate of 25L/min through a pipe of diameter7.0cm at a pressure of 6.0Pa. At one point in the horizontal pipe, calcium deposits reduce the cross-sectional area to 30cm2. ..
A 3.00-m length of wire is held in an east-west direction and moves horizontally to the north with a speed of 0.440 m/s. Calculate the magnitude of the induced emf between the ends of the wire. (in µV)
Suppose you decide to travel to a star 85 light-years away at a speed that tells you the distance is only 10 light-years
A steel cable with total length,52 mand mass,130 kgis connected to two poles. Calculate the wavelength of the resulting wave on the cable
The distance between the objective and eyepiece lenses in a microscope is 24cm, What eyepiece focal length will give the microscope an overall angular magnification of 350
A 50 gram bullet is fired into a block of mass 4.0kg, initially at rest at the edge of a frictionless table of height 0.8m. find the speed of the system before it strikes the ground
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