If M = 2.2 kg, what is the tension in the connecting string? The pulley and all surfaces are frictionless
a.
6.4 N
b.
5.9 N
c.
5.4 N
d.
6.9 N
e.
8.3 N
c
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Indicate whether the statement is true or false
Free Fall: A rock is thrown directly upward from the edge of a flat roof of a building that is 56.3 meters tall. The rock misses the building on its way down, and is observed to strike the ground 4.00 seconds after being thrown. Take the acceleration due to gravity to have magnitude 9.80 m/s2 and neglect any effects of air resistance. With what speed was the rock thrown?
Fill in the blank(s) with the appropriate word(s).
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