Physics, 23.08.2019 04:30 saraagracee
you place 300g of water in a coffee-cup calorimeter and the temperature of the water is 22.3 degrees c. a 94.5g piece of silver metal is heated to 100 degrees c amd added to the water in the calorimeter. what will the final temperature of the silver and the water be? the specific heat of silver is .235 j/g degreesc. water is 4.184 j/g degreesc.
Answers: 1
Physics, 22.06.2019 11:00
Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?
Answers: 1
Physics, 22.06.2019 12:10
The average density of the planet uranus is 1.27 103 kg/m3. the ratio of the mass of neptune to that of uranus is 1.19. the ratio of the radius of neptune to that of uranus is 0.969. find the average density of neptune.
Answers: 1
Physics, 22.06.2019 20:50
Asquare 1m x 1m plate is shown below. all four of its edges are kept at 0 co. at t=0the temperature distribution is given by: y xtsins n75)=.a) using separation of variables determine the temperature distribution t(x,y,t)along the plate at any time t.b) discretize the heat conduction equation +=22222 txtusing a second-order centered difference scheme for the two second derivatives and a first-order forward euler scheme for the first derivative. using von neumann stability analysis, determine the stability criterion for the proposed discretization scheme in terms of , hand t. solve for the maximum allowable time step tmax
Answers: 1
you place 300g of water in a coffee-cup calorimeter and the temperature of the water is 22.3 degrees...
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