Apenny falls from a windowsill 25.0 m above the sidewalk. how fast is the penny moving when it strikes the ground? (remember that the velocity will be negative due to the downward motion of the penny)

Aballet student who learns with the of his instructor is demonstrating learning.

He viscosities of several liquids are being compared. all the liquids are poured down a slope with equal path lengths. the liquid with the highest viscosity will

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.