Answer:
light rays reflect off an object ,strike the mirror ,and are reflected into your eyes
Momentum = mass x velocity
m=7.3kg
v=20 m/s
momentum= 7.3(20) = 146 kg m/s
Part of the cell that stores food is called vacuole
Answer:
scratching a surface to make it rougher
increasing the size of a flying object
adding extra weight to an object
Explanation: