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The electric potential at a point that is halfway between two identical charged particles is 300 V. What is the potential at a point 25% of the way from one particle to the other?
What is the remaining Ag+ ion concentration and is precipitation complete? The solubility product constant of AgBr is 5.0 × 10-13.
A transformer with a turns ratio (secondary/primary) of 1:14 is used to step down the voltage from a 120-V wall socket to be used in a battery recharging unit. What is the voltage supplied to the re
Assuming 91% efficiency for conversion of potential to electrical energy, and 8% loss of the resulting power in transmission, what is the mass flowrate of water required to power a 200-watt light
If your path difference is 1/8 of the wavelength, will this result in constructive or destructive interference? Please show mathematically and explain.
What voltage appears across the primary coil of this transformer if 140V is applied to the secondary coil?
A gas has the equation of state PV=RT+a(T)P. Show that for a reversible expansion between T1 and T2 at constant pressure P, the work done is.
A dinoflagellate takes 5.2 s to travel 0.6 mm. Approximate a dinoflagellate as a sphere of radius 35.0 µm. What is the power output of the flagellate?
A 15 kg flywheel has all its mass around its outer rim. A string is wrapped around it and a m = 3.7 kg weight is hanging on the string. The flywheel has radius R = 0.25 m. When the 3.7 kg weight is
A rod is pulled along a rail by a constant external force. The length of the rod b/t the rails is 38cm. The magnetic field point upward b/t the rails has a constant value 0.885T. The circuit has res
The final temperature was 27.1oC exactly. The specific heat capacity of water is Cp=4.1855 J/g oC. What is the specific heat capacity of the solid?
If a negative was introduced and moved from a positive equipotential line toward a negative equipotential line, would the work be positive or negative? Explain please.
Question: A small sphere with a mass of 0.002g and carrying a charge of 5*10^-8C hangs froma thread near a very large, charged conducting sheet. The charge density on the sheet is 2.5*10^-9C/m^2. FI
One point-like charge of -20 nC is placed 3 cm away from a very large planar sheet of charge. The surface charge density is constant and has the value of +20 nC/cm^2 (a) Give the electric force exer
A buffer solution contains 0.17 mol of propionic acid and 0.24 mol of sodium propionate in 1.50 L. What is the pH of the buffer after the addition of 0.01 mol of HI?
A 900-kg car is moving at 33.3 m/s. A braking force of -7548 N is applied for 2.70 s. What is the velocity of the car when the brakes are released?
A helicopter lifts a 70 kg astronaut 16 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/10. (a) How much work is done on the astronaut by the force from the h
A typical amount would be 7.6 * 10^(-5) of Kl per gram of NaCl. What is the concentration of potassium iodide in terms of part per million (ppm)?
A wire carries a current of 0.616 A. This wire makes an angle of 56.7° with respect to a magnetic field of magnitude 4.63E-5 T. The wire experiences a magnetic force of magnitude 7.17E-5 N. What
Explain the changes in acceleration, velocity, and net acceleration Of a man jumping off a plane in a parachute. Describe the changes with valid scientific principles.
A generator uses a coil that has 116 turns and a 0.455 T magnetic field. The frequency of this generator is 70.0 Hz, and its emf has an rms value of 115 V. Assuming that each turn of the coil is a s
The rectangular coils in a 315-turn generator are 15cm by 15cm. What is the maximum emf produced by this generator when it rotates with an angular speed of 515rpm in a magnetic field of 0.40T ?
A 0.43 T magnetic field is perpendicular to a circular loop of wire with 56 turns and a radius of 16cm .If the magnetic field is reduced to zero in 0.14s, what is the magnitude of the induced emf?
How many quartz of ethylene glycol, C2H6O2 (density = 1.116 g/mL). Will have to be added to 5 gal of water (density = 1 g/mL) to protect an automobile radiator down to a temperature of-10oF?
What additional capacitor do you need to produce a total capacitance of 55 mu F. Should you join the two capacitors in parallel or in series?