A ch stack emist The receives a shipment floor. Figure below. a 1.000 gram consi

Question

A ch stack emist The receives a shipment floor. Figure below. a 1.000 gram consisting 3boxes of laboratory supplies. stacks the 3 boxes on the laboratory in the the The entire box of stoppers, gram box of clamps and an 14000 which exerts. system is at a 5,000 foaowine Emore gram box of buoyant force rest-and the glassware, remains at rest. In the (entirely neg 1000 grams cLAMPs 5000 grams LAsswARE 14,000 grams FLOOR 15. The box of clamps has a weight of e. 4.900 x 10' N. 5.00 kg. 290 N. 49.0 N box of glassware pushes up on the box of camps with a force having a. 490 10 N. 588 N. shes down on box of clamps with a force having 17. The box of stopp 00 kg. b. 9.80 N. C. 98.0 N. 18. The floor pushes up on the box of glassware with force having mapnitude 1.37 x 10 137 N 19. Irue or False: The box of glassware pushes down on the floor with a force having magnitude of 190NA a. True, b. False. 20. Irue or False: The reaction force to the gravitational pull of the Earth on the box of stoppers is the upward of clamps exerts on the box of stoppers? ch the box a. True. b. False

Explanation / Answer

weight = m*g

m = mass

g = 9.8 = acceleration due to gravity

(15)

W = 5000*10^-3*9.8 = 49 N

(16)

F - W =0

F = W = (5000+1000)*10^-3*9.8 = 58.8 N

(17)

F - W = 0

F = W = 1000*10^-3*9.8 = 9.8 N

18)

F - W = 0

F = W = (1000+5000+14000)*10^-3*9.8 = 196 N

19)

on the floor

F - W = 0

F - ((1000+5000+14000)*10^-3*9.8 ) = 0

F = 196 N

TRUE

--------------

(20)

True

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