The current American way of life a. does NOT provide necessary opportunities for its citizens to lead a healthy life
b. meets the minimum standards for most individuals to enjoy good health and quality of life
c has NOT had a significant effect on the leading causes of death over the last century
d. does NOT provide most individuals with sufficient physical activity to maintain good health

( IM IN A HURRY) if u can help

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

Which statement correctly describes the relationship between frequency and wavelength?

The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? a b c d