Find the mass of a bird sitting on a tree 2 m above the ground if its gravitational potential energy is 196 ) and the acceleration of gravity is 9.8 m/s2

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

The dot diagram represents the motion of the motorcycle as it moves from left to right

7types of electromagnetic waves from lowest to highest frequency