20. A tricycle wheel of radius 0.11 m is at rest and is then accelerated at a rate of 2.3 rad/s2for a period of 8.6 s. What is the wheel’s final angular velocity? w = wo + at -> w = 0 + 2.3 ( 8.6) = 19.78 -> 20 rads/s

In order to place a satellite into orbit, it requires enough fuel to supply the necessary mechanical energy. into what types of mechanical energy does the fuel get transformed?

In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong chain

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