A Gardener pulls a 50 kg roller along level ground, as shown in the picture. The handle of the roller makes a 30°
angle to the horizontal ground, and the gardener pulls with a
force of 300 N along the handle.
What is the horizontal component of the 300 N force?

This problem has been solved! see the answera non-uniform fire escape ladder is 6.0m long whenextended to the icy alley below. it is held at the top by africtionless pivot, and there is neglibible frictional force fromthe icy surface at the bottom. the ladder weighs 250n, and it'scenter of gravity is 2.0m along the ladder from the bottom. amother and child of total weight 750n are on the ladder 1.5m fromthe pivot. the ladder makes an angle θ with the horizontal.find the magnitude and direction ofa) the force exerted by the icy alley on the ladderb) the force exerted by the ladder on the pivotc) do your answers in part a and b depend on the angle?

The necleus of an atom is made up of what subatomic particles?

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same