How many would remain after one half life and two half lives
How many would remain after one half life, two half lives, three half lives, and after four half lives if we start with 48 atoms of a radioactive substance.
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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.
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 ______________ m/s2.
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 produces maximum irradiance on the plane at P if
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 secondary)?
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.
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 transformer? Suppose an ideal transformer.
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.
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?
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.
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