Physics, 16.11.2019 07:31 Ostritch8336
Acalorimeter has aluminum inner cup of mass 120 gram containing 200 ml water at temperature 20 degree celsius. brass piece with mass 100 gram is heated to 100 degree celsius, and then immersed in the calorimeter. calculate the final temperature of the system. the specific heat of brass is 0.09 cal/(gramxdeg. c) . the additional necessary data are provided in the text.
2) a chunk of 22 gram ice is pulled from a freezer keeping temperature -25 deg. celsius, and placed in an identical calorimeter as the one described in problem 1. the final temperature of the system is measured to be 10 deg. celsius. what is the experimental latent heat of fusion of ice? the additional necessary data are provided in the text.
Answers: 1
Physics, 21.06.2019 19:40
Ogleā2013āblgā0723 is an exoplanet that is similar to earth in size and proximity to its star. this exoplanet has mass m=4.18Ć1024kg and radius r=5.66Ć106m. an astronaut whose weight on earth is w=735n lands on the planet. a. calculate m, the mass of the astronaut. b. calculate gp? , the acceleration due to gravity on the surface of ogleā2013āblgā0723. c. calculate wp? , the weight of the astronaut on the surface of ogleā2013āblgā0723. d. calculate v, the minimum velocity required to put an object into orbit above ogleā2013āblgā0723. e. calculate t, the time required to complete an orbit around ogleā2013āblgā0723.
Answers: 3
Physics, 22.06.2019 06:30
Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.
Answers: 2
Physics, 22.06.2019 07:30
Examine the nuclear reacti why is this classified as a nuclear reaction rather than a chemical reaction? it is not balanced. a new compound is formed. a change has occurred in a nucleus. a new element has been formed.
Answers: 2
Physics, 22.06.2019 12:20
Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.
Answers: 2
Acalorimeter has aluminum inner cup of mass 120 gram containing 200 ml water at temperature 20 degre...
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