a circus act, a performer supports the combined weight (1640 N) of a number of her colleagues. Each thighbone (femur) of this performer has a length of 0.55 m and an effective cross sectional area of 7.7 cm 2 . Determine the amount by which each thighbone compresses under the extra

Aplane flies directly between two cities, a and b, which are separated by . from a to b, the plane flies into a headwind. on the return trip from b to a, the wind velocity is unchanged. the trip from b to a takes less than the trip from a to b. what is the airspeed of the plane, assuming it is the same in both directions

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change? work power gravitational energy chemical energy

Which accurately compares concave and convex lenses?