Bikash T. Magar

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Two moles of an ideal mono-atomic gas go through the cycle abc. For the complete cycle, 800J of heat flows out of the gas. Process ab is at constant pressure, and process bc is at constant volume. ...

A steam engine intakes 200g of steam at 98 degree celsius per minute and cools it down to 10 degree celsius. Calculate the heat rejected by the steam engine per minute. Latent heat of vaporization ...

Heat rejected during condensation of steam per min = mL

= 200*540

= 108000 cal

Heat rejected during colling per min = msdt

= 200*1*(98-10)

= 17600 cal

Total heat rejected by the steam engine per min = 108000+17600 cal

= 125600 cal

The lunar ocean tide is much more important than the solar ocean tide. The opposite is true for tides in the Earth's atmosphere, however. Explain this, using resonance ideas, given the fact that th...

Could we ever construct a true simple pendulum? Explain your answer.

Practically, it is impossible to create an ideal simple pendulum because we can’t have a point mass and heavy solid metallic sphere (bob) tied to one end of a long unspun cotton thread and suspended from rigid support to serve the purpose of a simple pendulum.

A person stands on a bathroom-type scale, which rests on a platform suspended by a large spring. The whole system executes simple harmonic motion in a vertical direction. Describe the variation in ...

Could standards of mass, length, and time be based on properties of a pendulum? Explain.

The time period (T) of a simple pendulum is defined as,

T = 2π L/g

Here, L is the length of the pendulum and g is the acceleration due to gravity.

So the period of oscillation is independent of mass but depends on length. Thus length and time period is the fundamental property of a pendulum. Therefore, length and time be based on properties of a pendulum but the mass does not.

A singer, holding a note of the right frequency, can shatter a glass if the glassware is of high quality. This cannot be done if the glassware quality is low. Explain why.

When a singer holds a note of a particular frequency which is equal to the natural frequency of the glass, it will vibrate with great amplitudes. As a result the glass may be blown apart in pieces.

If the glass quality is low, the resonance frequency cannot be matched with its right natural frequency. That is why it cannot be done if the glassware quality is low