Ablock of mass 15 kg starts from rest and slides down a 20° angle inclined plane. the coefficient of kinetic friction is 0.3. after sliding a distance of 34cm, it contacts a spring of force constant 350 n/m. how far does the block compress the spring?

Consider two metallic rods mounted on insulated supports. one is neutral, the other positively charged. you bring the two rods close to each, but without contact, and briefly ground the the neutral rod by touching it with your hand. show answer correct answer what would be resulting charge (if any) on the initially neutral rod

How to tell if a molecule is polar or nonpolar with electronegativity

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?