VERY EASY QUESTION FOR HIGH SCHOOL STUDENTS: Which of the following frequencies would you expect a young person to be able to hear? 500 Hz, 6000 Hz, 25000 Hz, 15 Hz, 15000 Hz

Acar of mass m goes around a banked curve of radius r with speed v. if the road is frictionless due to ice, the car can still negotiate the curve if the horizontal component of the normal force on the car from the road is equal in magnitude to 101) a) mv2/r b) mg/2. d) mg e) tan[v2/(eg)]

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply

Name two kinds of practical electric pumps.