Molecular Physics | Thermodynamics Answers

A force of 30 N is applied to a body of mass 5.0 kg which is moving at speed 4.0 m/s. The final speed of the body after 2.0 a is [16] m/s

c)Calculate the energy required in joules to raise the temperature of 450 grams of water from 15°C to 85°C. (The specific heat capacity of water is 4.18 J/g/°C)

The length of the tube is 0.9 m
and the temp of the room is 22°C
The first trial the total travel time is 0.004973, the second trial he total travel time is 0.0054054, and the third trial the total travel time is 0.004744, and the fourth trial the time travel is 0.0057106, and the fifth trial the time traveled is 0.0052528, the average is 0.00521716.
what is the speed number and the m/s.
1) Calculate the speed of sound. Remember that your time interval represents the time for sound to travel down the tube and back.
2) The accepted speed of sound at atmospheric pressure and 0C is 331.5 m/s. The speed of sound increases 0.607 m/s for every C. Calculate the speed of sound at the temperature of your room and compare your measured value to the accepted value.

A circular hole of 15 cm diameter is cut on a copper plate at a temperature of 30 celsius . Find the area of hole at 150 degree celsius.

Given a copper calorimeter of specific heat capacity 400j/kgK, thermometer stirrer oil sample voltmeter ammeter rheostat,12V accumulator heating coil and stop watch.write an experimental report on how to determine the specific heat capacity of the oil sample by electrical method.

change in thermal energy (J)= mass (kg) x specific heat capacity (j/kg celcius) x change in temerature (celcius)
a 100 kg block of iron or an equal mass of water? the specific heat capacity of water is 4200 J/kg celcius and of iron is 450 J/kg celcius.

Steam at 100°c is passed into a container of negligible heat capacity containing 20g of ice and 100g of water at 0°c until the ice is completely melted, determine the total mass of water in the container if the specific latent heat of steam is 2300j/g and the S.H.C of water is 4.2j/g/k

1kg of copper is transferred quickly from boiling to a block of ice. Calculate the mass of ice melted if the S.H.C of copper is 400j/kg/k and the latent heat of fusion of ice is 330000j/kg

The lengths of the mercury column of a mercury thermometer are 1.26cm and 20.86cm respectively at the standard fixed points. What is the temperature of body, which produces 9.0cm of this mercury column?

Assuming that the earth re-emits all the radiations it receives from the sum, determine
its temperature, (For earth, E = 1.39 × 103
w/m2 , Stefan’s constant. = σ = 5.735 × 10–8
w/m2
k
4
)