Question 10 Which pair of elements is MOST similar?

Your
Ca and F
Na and Cl
Ne and Ar
Li and H

Ajogger runs 5.0 km on a straight trail at and angle of 60 south of west . what is the southern component of the run rounded to the nearest tenth of a kilometer

Anika asks eva to roll a basketball and then a bowling ball to her. which requires more force to roll, and why?

Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius 푅=0.381meters and mass 푀=3.1푘푔. initially 푚"is on the ground and 푚#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of 푚#just before it strikes the ground. assume the pulley bearing is frictionless.