C Intro X Sign x G resid X as Resid X (46) ( X (55) ( X ) Psaul X D2L 6-10 X VA Mod X * Cour X Cour X (66) 1 X + V X webassign.net/web/Student/Assignment-Responses/submit?dep=30689990&tags=autosave#question3572613_5 Update G Gmail YouTube . Maps Tendances TV fuboTV - Watch &... 3 Google & TRIP TO SPAIN . Enroll - Apple Devell.. Settings Les liens de Fidel C... >> Other bookmarks 7. [-/4 Points] DETAILS OSCOLPHYS2016 7.6.WA.052. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A 5.90 kg object falls freely (ignore air resistance), after being dropped from rest. Determine the initial kinetic energy (in ]), the final kinetic energy (in J), and the change in kinetic energy (in ]) for the following (a) the first meter of the fall initial kinetic energy final kinetic energy change in kinetic energy (b) the second meter of the fall initial kinetic energy final kinetic energy U change in kinetic energy U Additional Materials Reading BO 7:00 PM Mostly cloudy Search O a W A ENG 2/9/2023 5 USC Intro X Sign X G resid X ads Resid X (46) ( X (55) ( X ) Psaul X D2L 6-10 X VA Mod X * Cour X Cour X (66) 1 X + V X - C webassign.net/web/Student/Assignment-Responses/submit?dep=30689990&tags=autosave#question3572613_5 Update G Gmail YouTube . Maps Tendances TV fuboTV - Watch &... & Google & TRIP TO SPAIN . Enroll - Apple Devell.. Settings Les liens de Fidel C... >> Other bookmarks 8. [-/4 Points] DETAILS OSCOLPHYS2016ACC 7.7.P.039. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) Find the useful power output (in W) of an elevator motor that lifts a 2800 kg load a height of 35.0 m in 12.0 s, if it also increases the speed from rest to 4.00 m/s. Note that the total mass of the counterbalanced system is 10,000 kg-so that only 2800 kg is raised in height, but the full 10,000 kg is accelerated. (Enter a number.) W (b) What does it cost (in cents), if electricity is $0.0900 per kW . h? (Enter a number.) cents 9. [-/4 Points] DETAILS OSCOLPHYS2016ACC 7.8.P.047. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) What is the efficiency of an out-of-condition professor who does 2.10 x 10j of useful work while metabolizing 500 kcal of food energy? (Enter your answer as a percentage. Enter a number.) % (b) How many food calories (in kcal) would a well-conditioned athlete metabolize in doing the same work with an efficiency of 25%? (Enter a number.) kcal BO Search O a W ENG 7:01 PM 5 Mostly cloudy US 2/9/2023C Intro X Sign X G resid X as Resid X (46) ( X (55) ( X ) Psaul X D2L 6-10 X VA Mod X * Cour X Cour X (66) 1 X + V X webassign.net/web/Student/Assignment-Responses/submit?dep=30689990&tags=autosave#question3572613_5 Update G Gmail YouTube . Maps Tendances TV fuboTV - Watch &... 3 Google & TRIP TO SPAIN . Enroll - Apple Devell.. Settings Les liens de Fidel C... > Other bookmarks 10. [-/4 Points] DETAILS OSCOLPHYS2016 7.9.P.060. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) Calculate the force (in N) the woman in the figure below exerts to do a push-up at constant speed, taking all data to be known to three digits. (You may need to use torque methods from a later chapter.) m = 62 kg CG W 0.88 m Freaction 1.47 m N (b) How much work (in ]) does she do if her center of mass rises 0.260 m? (c) What is her useful power output (in W) if she does 30 push-ups in 1 min? (Should work done lowering her body be included? See the discussion of useful work in Work, Energy, and Power in Humans.) W Additional Materials Reading 80#F Search O a T W ENG 7:01 PM A Mostly cloudy US 2/9/2023 5