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A person attempts to calculate the gravitational constant G by suspending two 100.0kg spherical masses from a high ceiling in a shopping mall and calculating the deflection of the cables from the vertical.
a) sketch a free body force diagram of one of the masses.
b) The cables are 45.0m long and attached to the ceiling 1.00m apart. What is the distance amnong of the two masses (centre of mass to centre of mass) at the bottom?
What do you mean by lateral shift? Derive a mathematical expression for lateral shift produced by a parallel sided glass slab for oblique incidence.
A concentric tube heat exchanger is comprised of a thin wall inner tube of 25.4 mm diameter and an outer tube of 47 mm diameter. The heat exchanger is used for cooling lubricating
An electric dipole of dipole moment 20, X 10 -6 C.m is enclosed by a closed surface. What is the net flux coming out of the surface?
State whether the following statements are true or false: (a) The purpose of a transistor amplifier is to enhance the frequency of the input signal. (b) The gain of an ampl
What do you mean by transformer ratio? A current of 2A is passed through a coil of 1000 turns to produce a flux of 0.5µwb. Determine the self inductance of the coil.
The formula y=A cos ?(t-x/v), describes a wave that moves in the +x direction along a stretched string. Show that this formula is a solution of the wave equation?
It is an instrument which can detect/calculate very small electric currents. It is also called as moving magnet galvanometer. It has of three circular coils of insulated copper wir
A lead bullet moves horizontally with a velocity of 130 ms-1 and embedded into a cement wall after collision. If the specific heat capacity of lead = 130 JKg-1°C-1 and all heat pro
X-rays was discovered by scientist Rontgen that's why they are also known as Rontgen pulses. Rontgen discovered that when pressure inside a discharge tube kept 10 -3 mm of Hg a
The molar heat capacity of a gas at constant pressure is 18.7 J mol -1 K -1 . What is the heat capacity of 9.4 moles of this gas at constant volume ?
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