Please help. Thanks A block of mass m is released from rest at the top ofan incline that makes an angle a with the horizontal.The coefficient of kinetic friction between the blockPart Aand incline is uk. The top of the incline is a verticaldistance h above the bottom of the incline.Derive an expression for the work Wf done on the block by friction as it travels from the top of the incline to the bottom.Express your answer in terms of the variables 4, m, g, h, and a.?W; =SubmitRequest AnswerPart BWhen a is decreased, does the magnitude of W; increase or decrease?O When a decreases, the magnitude of Wf increases.O When a decreases, the magnitude of Wf stay the same.O When a decreases, the magnitude of Wf decreases. Two satellites are in circular orbits around a planetthat has radius 9.00 × 10° m. One satellite hasmass 68.0 kg, orbital radius 8.00x107 m, and orbitalspeed 4800 m/s. The second satellite has mass84.0 kg and orbital radius 6.00×107 m.Part AWhat is the orbital speed of this second satellite?Express your answer to three significant figures and include the appropriate units.HA?Valuem/s

Name: Please help. Thanks A block of mass m is released from rest at the top
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: Please help. Thanks A block of mass m is released from rest at the top ofan incline that makes an angle a with the horizontal.The coefficient of kinetic friction between the blockPart Aand incline is uk. The top of the incline is a verticaldistance h