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Question - An unknown length of platinum wire 0.760mm in diameter is placed as the unknown resistance in a Wheatstone bridge (see the figure). Arms 1 and 2 have resistance of 38.0Ω and 55.0Ω, respectively. Balance is achieved when R3 is 3.63 Ω. Resistivity of platinum is 10.6 x 10-8.
How long is the platinum wire?
An occupant of a car has a chance of surviving a crash if the deceleration all through the crash is not more than 30.00 g. Approximation the force on a 72 kg person decelerating at this rate.
The wheel of a racing car is rotating at 200 rpm at a given instant of time. In the next minute it makes 100 revolutions. The angular acceleration of the wheel is
The Boeing 727 aircraft of Example 9.8 cruises at 520 mph at 33,000 ft altitude on a standard day. Calculate the cruise Mach number of the aircraft. If the maximum allowable operating Mach number for the aircraft is 0.9, what is the corresponding..
tim and rick both can run at speed vr and walk at speed vw with vrgtvw . they set off together on a journey of
The mass of a bottom quark is \(4.2 GeV/c^{2}\), What was the energy of the proton beam and how fast were they moving
Vector and scalar quantities. Part (a) Which of the following below is a scalar quantity? Part (b) What information do vectors quantities convey? Part (c) Which of the following is a vector quantity?
A circular coil, with radius of 10 cm, and 25 turns, rotates in a constant magnetic field of strength 2.4 T, If the magnetic field that the coil is in points down the page, which direction does the coil rotate
Yellow light from a sodium lamp (lambda=589 nm) traverses a tank of glycerine (n=1.47) which is 20 m long and time t 1. If it takes time t 2 to pass during the same tank when filled with carbon disulfide (n=1.63), find the difference among the t..
how do you calculate the position of the eyering on an astronomical telescope? in other words how do you find the
A wall is composed of two materials. Material 1 has a thickness of 5.89 centimeter and a thermal conductivity of 0.1 the material 2 has a thickness of 5.87 centimeter, obtain what is the temperature of the interface to the nearest tenth of a degree..
There are four charges, each with a magnitude of 2.0μC. Two are positive and two are negative. The charges are fixedto the corners of a 0.30 m square, one to a corner, in such a waythat the net force on any charge is directed toward the center oft..
Assume that air pressure is 1.00 atm and the air temperature is 23o C. If the abolute zero apparatus is open to the air, how many moles of air will it hold
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