C Intro X Sign X G resid X ads Resid X (46) ( X (55) ( X ) Psaul X D21 5-2 P X Cour x 0 Mail X Ceng X VA Mod X + V X C A webassign.net/web/Student/Assignment-Responses/last?dep=30689989 Update G Gmail YouTube . Maps @ Tendances TV fuboTV - Watch &... Google 3 TRIP TO SPAIN . Enroll - Apple Devell.. Settings Les liens de Fidel C... > Other bookmarks TOTAL SCORE 11:59 PM EST POINTS -/5.71 -/5.71 -/5.71 -/5.71 -/5.71 -/5.71 -/5.74 -/40 0.0% + Request Extension Assignment Submission & Scoring Assignment Submission For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answer. Assignment Scoring Your best submission for each question part is used for your score. 1. [-/5.71 Points] DETAILS OSCOLPHYS2016ACC 7.1.P.001. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER How much work does a supermarket checkout attendant do on a can of soup he pushes 0.510 m horizontally with a force of 4.20 N? Express your answer in joules and kilocalories. (For each answer, enter a number.) work in joules work in kilocalories kcal 740 F Rain off and on Search O a RX ENG 7:34 PM A US 2/3/2023 6C Intro X Sign x G resid X ads Resid X (46) ( X (55) ( X ) Psaul X D21 5-2 P X Cour x 0 Mail X - Ceng X VA Mod X + V X C A webassign.net/web/Student/Assignment-Responses/last?dep=30689989 Update G Gmail YouTube Maps Tendances TV fuboTV - Watch &.. Google TRIP TO SPAIN Enroll - Apple Devell.. Settings ) Les liens de Fidel C... > Other bookmarks 2. [-/5.71 Points] DETAILS OSCOLPHYS2016ACC 7.1.P.006. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER How much work (in ]) is done by the boy pulling his sister 36 m in a wagon as shown in the figure below? F 30 ad OO Assume no friction acts on the wagon. (Assumed = 36 m and F = 38 N. Enter a number.) W = + 740 F Search O a A ENG 7:34 PM Rain off and on US 2/3/2023 6C Intro X Sign x G resid X as Resid X (46) ( X (55) ( X ) Psaul X D21 5-2 P X Cour x 0 Mail X Ceng X A Mod X + V X - C A webassign.net/web/Student/Assignment-Responses/last?dep=30689989 Update G Gmail YouTube Maps Tendances TV fuboTV - Watch &... Google TRIP TO SPAIN Enroll - Apple Devell.. Settings Les liens de Fidel C... > Other bookmarks 3. [-/5.71 Points] DETAILS OSCOLPHYS2016ACC 7.1.P.004. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Suppose a car travels 108 km at a speed of 20.0 m/s, and uses 1.80 gallons of gasoline. Only 30% of the gasoline goes into useful work by the force that keeps the car moving at constant speed despite friction. (The energy content of gasoline is 1.30 x 10 ] per gallon.) (a) What is the force (in N) exerted to keep the car moving at constant speed? (Enter a number.) N (b) If the required force is directly proportional to speed, how many gallons will be used to drive 108 km at a speed of 28.0 m/s? (Enter a number.) gallons 4. [-/5.71 Points] DETAILS OSCOLPHYS2016ACC 7.2.P.015. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Using energy considerations, calculate the average force (in N) a 61.0 kg sprinter exerts backward on the track to accelerate from 2.00 to 7.00 m/s in a distance of 25.0 m, if he encounters a headwind that exerts an average force of 30.0 N against him. (Enter a number.) N 740 F Search O a T 7:34 PM A ENG Rain off and on 2/3/2023 6 USC Intro X Sign x G resid X as Resid X (46) ( X (55) ( X ) Psaul X D21 5-2 P X Cour x 0 Mail X Ceng X A Mod X + V X A webassign.net/web/Student/Assignment-Responses/last?dep=30689989 Update G Gmail YouTube Maps Tendances TV fuboTV - Watch &... Google TRIP TO SPAIN Enroll - Apple Devell. Settings @ Les liens de Fidel C... > Other bookmarks 5. [-/5.71 Points] DETAILS OSCOLPHYS2016ACC 7.2.P.013. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A car's bumper is designed to withstand a 4.32 km/h (1.2 m/s) collision with an immovable object without damage to the body of the car. The bumper cushions the shock by absorbing the force over a distance. Calculate the magnitude of the average force (in N) on a bumper that collapses 0.165 m while bringing a 890 kg car to rest from an initial speed of 1.2 m/s. (Enter a number.) IN 6. [-/5.71 Points] DETAILS OSCOLPHYS2016ACC 7.3.P.017. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) How much gravitational potential energy (in ]) (relative to the ground on which it is built) is stored in an Egyptian pyramid, given its mass is about 4 x 10 kg and its center of mass is 17.0 m above the surrounding ground? (Enter a number.) (b) What is the ratio of this energy to the daily food intake of a person (1.2 x 10'])? (Enter your answer as a ratio to the number 1. Enter a number.) :1 740 F Rain off and on Search O a RX A ENG 7:34 PM US 2/3/2023 6C Intro X Sign X G resid X ads Resid X (46) ( X (55) ( X ) Psaul X D21 5-2 P X Cour x 0 Mail X Ceng X VA Mod X + V X webassign.net/web/Student/Assignment-Responses/last?dep=30689989 Update G Gmail YouTube Maps Tendances TV fuboTV - Watch &... Google TRIP TO SPAIN Enroll - Apple Devell.. Settings ) Les liens de Fidel C... > Other bookmarks 7. [-/5.74 Points] DETAILS OSCOLPHYS2016ACC 7.3.P.016. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A hydroelectric power facility converts the gravitational potential energy of water behind a dam to electric energy. (For each answer, enter a number.) (a) What is the gravitational potential energy (in ]) relative to the generators of a lake of volume 75.0 km (mass = 7.50 x 10 kg), given that the lake has an average height of 39.0 m above the generators? (b) Compare this with the energy stored in a 9-megaton fusion bomb. Elake Ebomb = + Submit Assignment Save Assignment Progress 740 F Search O a A ENG 7:34 PM 6 Rain off and on US 2/3/2023