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Neurons are components of the nervous system of the body that transmit signals as electrical impulses travel along their length. These impulses propagate when charge suddenly rushes into and then out of a part of the neutron called an axon. Measurements have shown that, during the inflow part of this cycle, approximately 5.60×10^11 Na+ (sodium ions) per meter, each with charge +e, enter the axon. How many coulombs of charge enter a 1.20 length of the axon during this process? (answer in nC)
A spring is oscillating with a frequency of 1.7Hz. 3.9 seconds after the spring is released it is -20cm from equilibrium. Find the amplitude of the spring
The middle C string on a piano is under a tension of 644 N. Find the linear density of the string
In some places, insect "zappers," with their blue lights, are a familiar sight on a summer's night. how many turns are in the secondary coil
A car moving at 25m/s approaches a stationary whistle that emits a 350Hz sound. The speed of sound in the air is 343m/s, what is the frequency of sound heard by the driver of the car
A thin wire is bent into a semicircle, having a radius of curvature equal to 6.40 cm. What is the potential at the center of curvature?
Water has the following thermodynamic constants: (1) specific heat liquid = 4.18 J/g °C, solid = 2.09 J/g °C, gas = 1.89 J/g °C, (2) heat of fusion = 334 J/g, and (3) heat of vaporization = 2257 J/g. how much heat is required to melt the sample
a park ranger wanted to measure the height of a tall tree. The ranger stood 9.50 m from the base of the tree, What is the height of the tree
A sphere of conducting material has an empty hollow cavity within it and a net charge of Q=+5 distributed over its surfaces. What is the magnitude of the electric field within the hollow cavity
An oscillating LC circuit has a current amplitude of8.50 mA, a potential amplitude of 250mV, and a capacitance of 235 nF. What is the maximum energy stored in the capacitor
One particle has a mass of 4.59 x 10-3 kg and a charge of +7.03 ?C. A second particle has a mass of 8.88 x 10-3 kg and the same charge. Find the initial separation between the particles
explain the working of beat frequency oscillator with suitable
Suppose you take and hold a deep breath on a chilly day, inhaling 3.0 L of air at 0 degrees C . Assume that air pressure is 1.0atm . How much heat must your body supply to warm the air to your internal body temperature of 37degrees celcius ? How much..
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