Physics, 26.11.2021 23:20 Cassandoo

The initial temperature of the mixture was +20 °C. The mixture froze at -1.5 °C. A total of 165 kJ of internal energy was transferred from the mixture to cool and
freeze it.
specific heat capacity of the mixture = 3500 J/kg °C
specific latent heat of fusion of the mixture = 255 000 J/kg
Calculate the mass of the mixture.
Give your answer to 2 significant figures.
[6
M

Answers: 3

Show answers

Another question on Physics

Physics, 21.06.2019 18:20

What color of light must blue light mix with to create white light? a. yellow b. white c. blue d. green

Answers: 2

Answer

Physics, 22.06.2019 10:00

Which atomic model was proposed as a result of j. j. thomson’s work?

Answers: 1

Answer

Physics, 22.06.2019 15:10

In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_

Answers: 3

Answer

Physics, 22.06.2019 16:50

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.

Answers: 2

Answer

You know the right answer?

The initial temperature of the mixture was +20 °C. The mixture froze at -1.5 °C. A total of 165 kJ...

Questions