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W is the net work done by the system—that is, W is the sum of all work done on or by the system. By convention, if Q is positive, then there is a net heat transfer into the system; if W is positive, then there is net work done by the system.
- 23.3 The Unification of Forces
As discussed earlier, the short ranges and large masses of...
- 21.3 The Dual Nature of Light
Figure 21.10 shows a comet with two prominent tails. Comet...
- 22.4 Nuclear Fission and Fusion
As shown in Figure 22.26, a neutron strike can cause the...
- 23.3 The Unification of Forces
a) What is the work done by air resistance on the ball? I came up with $$F \times\text{Distance}(8.4) = .5 \times\text{Weight}(.37)\times(0-14^2)$$ But my answer doesn't match with the book's answer which is $-5.8\text{ J}$.
What is the work done by air resistance on the ball? Assuming that the air resistance performs roughly the same job during the descent, calculate the speed of the ball when it returns to the starting point. How do I calculate the work of the air resistance?
Work is done when a force is used to move an object. The formula for work done is: Work done = force × distance. Where: W = work done in joules (J) or newton-metres (N m) F =force in newtons (N) d = distance in metres (m) You can rearrange this equation with the help of the formula triangle:
1 lis 2022 · The formula for calculating work done by air resistance is: W = ½ C A ρ v ^3 t. Where: W is the work done (in joules, J) C is the drag coefficient (dimensionless) A is the cross-sectional area of the object (in square meters, m^2) ρ is the density of the air (in kilograms per cubic meter, kg/m^3)
20 lut 2022 · The work done is e \((F \, cos \, \theta)_{i(ave)}d_i\) for each strip, and the total work done is the sum of the \(W_i\). Thus the total work done is the total area under the curve, a useful property to which we shall refer later.
12 wrz 2022 · Describe the work done by a system, heat transfer between objects, and internal energy change of a system; Calculate the work, heat transfer, and internal energy change in a simple process
