A cat runs up a 45 m tall tree in 1.4 s. What is the average velocity of the cat? 0.031 m/s, up

44 m/s, up

63 m/s, up

32 m/s, up

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever

think its the third option

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000