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A virtual image of magnification +0.375 is produced when an object is located in front of a spherical mirror.
(a) Determine what type of mirror is it?
(b) Obtain the radius of curvature of the mirror if the object is 125 centimeter in front of it. (Use a sketch to illustrate).
On a spacecraft two engines fire for a time of 589 s. One gives the craft an acceleration in the x direction of ax = 5.05 m/s2, Calculate the magnitude of the initial velocity
Two identical parallel-plate capacitors, each with capacitance C, are charged to potential difference ?V and then disconnected from the battery. Find the potential difference across each capacitor after the plate separation is doubled
a coal-fired electric power plant has an overall efficiency of 33 and an output of 816 megawatts. how many terajoules
The G string on a violin has a fundamental frequency of 196 Hz. It is 29.0 cm long and has a mass of 0.500 g. While this string is sounding, a nearby violinist effectively shortens the G string on her identical violin (by sliding her finger down t..
Two point charges are on the y axis. A 3.80-µC charge is located at y = 1.25 cm, and a -2.18-µC charge is located at y = -1.80 cm. Find the total electric potential at the origin
A parallel plate capacitor is constructed with Teflon(dielectric constant is 2.1) between the plates. What charge is stored on the plates
Fish are hung on a spring scale to determine their mass (most fishermen feel no obligation to report the mass truthfully). How far apart are the half-kilogram marks on the scale
Calculate the size of the smallest object on Mars that this telescope can resolve. Assume Mars is at its closest distance 7.8 × 1010 m from the Earth
an air-conditioner with refrigerant r-134a as the working fluid is used to keep the room at 23c by rejecting waste heat
A railroad car is released from a locomotive on an incline. what negative acceleration must it produce to bring the car to rest
A magnifying glass is a single convex lens with a focal length of f = +13.0 cm.
Three point charges are arranged along the x axis. Charge q1= = -4.50nC is located at x=.25m and charge q2=3.00nC is at x=-0.330m. a positive charge q3 is located at origin. What must the value of q3 be for the net force on this point charge to hav..
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