Aunit that is equal to 33 000 ft-lbs/min or 550 ft-lbs/s is the

watts

kilograms

joules

horsepower

you are a nurse in a hospital. you are told to move a patient through three corridors each measuring 14.33 meters. because of friction it requires a constant force of 848 n to move the patient and wheelchair. how much work must you perform to accomplish this task?

a-34,512 n
b-6,221 n
c-973 n
d- 456.5 n
e- 36,456 n

if you managed to accomplish the task of wheeling your patient down the three hospital corridors in 5 minutes, what was your average velocity while doing so?

71.65 m/s

0.34 m/s

13.5 m/s

0.14 m/s

you buy a whirling toy helicopter for your little brother that is attached to a thin, flexible wire that the operator holds as the helicopter spins around the operator. if the length of the wire is 0.6 m and the tangential velocity of the toy helicopter is 0.57 m/s what is the helicopter's centripetal acceleration?

0.33 m/s^2

0.67 m/s^2

0.54 m/s^2

83.20 m/ft^2

30 mm/s^2

a cog on a gear spins around the gear's axis. if the gear's radius is 3.79 meters and it takes the cog 0.51 minutes to complete a full rotation, what is the cog's tangential speed?

46.67 m/min

34 m/sec

3.79 mi/min

1.25 m/sec

12 m/min

a cog or a cut tooth on a gear spins around the gear's axis. if the gear's radius is 3.79 meters, what distance does the cog travel around a gear's rotation?
3.79 m

12.9 m

34.12 m

1.25 m

23.8 m

how much power would be required to raise a 50 kg sack of flour from the floor to a table one meter high in 2 seconds? (g=9.81 m/s^2)

345 n*m
245 watts
981 watts
364 n*m
622 watts