Physics Answers

One mole of an ideal gas is heated slowly so that it goes from the PV state (Pi, Vi) to (3Pi, 3Vi) in such a way that the pressure is directly proportional to the volume. (a) How much work is done on the gas in the process? (b) How is the temperature of the gas related to its volume during

this process?

The average coefficient of volume expansion for carbon tetrachloride is 3.9 x 10-* ("C)-¹, if a 20.0-gal steel container is filled completely with carbon tetrachloride when the temperature is 30.0°C, how much will spill over when the temperature rises to 41.0°C?

Steel train rails on LRT2 are laid in 10.0-m-long segments placed end to end. The rails are laid on a day when their temperature is 28.0°C. (a) How much space must be left between adjacent rails if they are just to touch on a summer day when their temperature is 39.0°C? (b) If the rails are

originally laid in contact, what is the stress in them on a summer day when their temperature is

39.0°C?

a low-frequency radio wave has a frequency of 250,000Hz. what is the wavelength of this radio wave?

A motorist travelled at 90km/hour applied it's brake came to rest with uniform retardation in 20seconds, calculate the retardation in meter per seconds square

In newton's ring experiment the diameter of nineth bright ring changes from 0.3cm to 0.26m.when a liquid is introduced between the lens and the glass plate.what will be the refractive index of the liquid

Calculate the dot product of C= (-2.-6)N and D= (-2,3)N.

A 40-kilogram mass is moving across a horizontal surface at 5.0 m/s. What is the magnitude of the net force required to bring the mass to a stop in 8.0 seconds? 

Find A,B given that A=3m and B=5m at angle of 45°

determine the image distance and image height for a 5.00 cm tall object placed 10.0 cm from a concave mirror having a focal length of 15.0 cm