Numerical problems. In the given hydraulic press the cross
sectional area of cylinder A1 and A2 are
0.25m² and 8m² respectively, what magnitude
of effort is to be applied on cylinder A, to
balance a load of 1000N on the cylinder A1?

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A20 cm long spring is attached to a wall. the spring stretches to a length of 22 cm when you pull on it with a force of 100 n. what is the spring constant

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.