A man lifts a 20.0-kg bucket of concrete from the ground up to the top of a 30.0-m tall building. The bucket is initially at rest, but is traveling at 4.0 m/s when it reaches the top of the building.
How much work was done by the man in lifting the bucket? A)
5.88 kJ
B)
600 J
C)
760 J
D)
6.04 kJ
E)
160 J
Question 2
What is the conversion factor between km/ h2 and m/ s2?
A)
7.72 10-5 (m/ s2)/(km/ h2 )
B)
2.78 10-1 (m/ s2)/(km/ h2 )
C)
1.30 104 (m/ s2)/(km/ h2 )
D)
3.60 (m/ s2)/(km/ h2 )
E)
16.7 (m/ s2)/(km/ h2 )
Species of reef-building corals may be able to adapt to warming waters by relying on algae
Approximately 1 pound (0.45 kg) of ground elk meat formed into patties; note the relatively small fa
An adult male killer whale with its characteristic tall dorsal fin swims in the waters near Tysfjord
building blocks
Frank Gehry and Vlado Milunić, Rasin Building (a.k.a. the "Dancing House" or ...
Barrel-vaulted gallery, ground floor of the Colosseum, Rome.