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When the starter motor on a car is engaged, there is a 330A current in the wires between the battery and the motor. Suppose the wires are made of copper and have a total length of 1.5m . What minimum diameter can the wires have if the voltage drop along the wires is to be less than 0.50V ? Express your answer using two significant figures.
Status Newton's First Law of motion.
In a refrigerator the working fluid remains a gas throughout the cycle. Its working may be described in a greatly simplified form as a sequence of four steps as follows: 1 The fluid passes through the refrigerated compartment, where its temperatur..
computer chips are etched on circular cylinder wafers of thickness 0.60mm that are sliced from a solid cylindrical silicon crystal of length 30cm . If each wafer can hold 100 chips, what is the maximum number of chips that can be produced from one..
A wheel (radius = 0.20 m) is mounted on a frictionless, horizontal axle. A light rope wrapped around the wheel supports a 0.50-kilogram object, as shown below. When released from rest, the object falls with a downward acceleration of 5.0 m/s2. What i..
In the figure, suppose that the separation between speakers A and B is 5.90 m and the speakers are vibrating in phase. They are playing identical 110-Hz tones, and the speed of sound is 343 m/s.
What slit separation will produce first-order maxima.
What is the magnitude of vertical component of its velocity as it strikes the ground.
What is the volume of the bubble when it reaches just below the surface of the lake, where temperature is 20°C.
Two conductors are joined by a long copper wire. Thus A) each conductor must be at the same potential. B) no free charge can be present on either conductor. C) each conductor carries the same free charge.
A 2.80x 10^2 W electric immersion heater is used to heat a cup of water. The cup is made of glass and its mass is 3x10^2 g. It contains 250g of water at 15°C.
What is the total negative charge, in coulombs, of all the electrons in a small 1.05g sphere of carbon? One mole of C is 12.0g, and each atom contains 6 protons and 6 electrons.
A 5.00--long ladder has mass 12.5 kg and is leaning against a frictionless wall, making a 64 degree angle with the horizontal. If the coefficient of friction between the ladder and ground is 0.42, what is the mass of the heaviest person who can safel..
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