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A plane electromagnetic sinusoidal wave having frequency 51.1 MHz travels in the free space. The speed of light is around 2.99792 x 108 m/s. i) Find out the wavelength of the wave.
A wave consists of a wavelength of 4.4 x 10−7 m and a speed of 8 x 107 m/s in a specific material. i) Determine its frequency in the material?
The can in shape of the right circular cylinder is needed to have the volume of 500 cubic centimers. State total cost C of material as the function of radius r of cylinder.
i) When the primary (input) coil in the transformer in adapter consists of 110 turns, determine how many turns are there on the secondary (output) coil? ii) Determine the rms power delivered to the
How many would remain after one half lifes, two half lives, three half lives, and after four half lives if we start with 48 atoms of a radioactive substance.
A hair drier employs 12 A at 116 V. This is employed having a transformer in England, where the line voltage is 231 V. i) What must be the ratio of the turns of the transformer (primary to the seconda
Let, consider an isotropic point light source S situated at some height h directly over a point M on a horizontal plane. When point P is on the plane at a distance r from M, verify that the source S
A block of 5.0 kg on a table (on Earth) is pushed through a force F = 67 N. When the coefficient of kinetic friction among the block and the table is 0.4 the acceleration of the block is ___________
In a specific radio wave, the shortest distance among positions where the electric and magnetic fields are zero is 0.90 m. Find out the frequency of the radio wave.
Due to corrosion, surface area of cable decreases at rate of 740 in2 per year. State diameter d of cable as the function of time t (in years).
The exercise program comprises of a set of consecutive high jumps, each one 45.0cm to the air (that is pretty good for a human) and lasting 1.50s, on the average. Explain how many jumps must the per
Sketch an RC circuit that consists of a time constant of 1.0 seconds by using just four 400 microfarad capacitors and twelve 150 ohm resistors.
Find out the position of the image. Is it in front of or behind the mirror? (Employ a negative number beneath to point out the image is behind the mirror.)
In a dissimilar car, the distance the dummy moves while being stopped is decreased from 0.600 m to 0.250 m, Compute the average force on the dummy as car stops.
What are the relative abundances of the two isotopes when a 2 gram sample of hydrogen gas found at Los Alamos Laboratory was calculated to contain 1 gram of 1H and 1 gram of2H.
The tarnished silver haveAg2S and the tarnish can be removed by placing the silverware in an aluminum pan containing an inert electrolyte solution, such as NaCl. Discuss the electrochemical princip
A cylindrical cable having radius 8.83 mm carries a current of 20.1 A, uniformly spread over the cross-sectional area. At what distance (in mm) from the center of the wire is there a point in the wi
Pressure at sea level is 1013 millibars and that pressure decrease by 14% for every kilometer above sea level. Determine atmospheric pressure at 50 km?
At 7.6 pH an enzyme catalyzed reaction was carried out in a 0.22M Tris buffer. The pKa of Tris is 8.1. As a result of this reaction, 0.03 moles/liter of H+ was formed.
Determine the magnitude of (i) the magnetic field generated by the loop at its center and (ii) the torque on the coil due to the loop?
The current density within a long, solid, cylindrical wire of radius a = 2.8 mm is in the direction of the central axis and its magnitude varies linearly having radial distance r from the axis accor
Determine the practical advantage of having the organic solvent be more dense than water in extracting an organic compound from an aqueous solution.
Calculate the yield of aspirin if the experiment yield was 1.850g and the theoretical yield was 2.0051g?Determine the corrected percent yield?
A person of 79 kg sits on a 3.7 kg chair. All the leg of the chair makes contact with the floor in a circle which is 1.3 cm in diameter. Determine the pressure applied on the floor by each leg of th
Determine the number of moles and numbers of ions of each type are present in the following aqueous solutions? 259 mL of a solution containing 5.35 g/L aluminum sulphate moles of ions number of ions.