What have studies shown about the Headstart program? a. it encourages a system of segregated neighborhoods b. it shows that poverty is eliminated c. it decreases the percentage of people in the wealthiest class d. it increases the chances that poor children will stay in school

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 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. 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.

If anyone who can me with this hw? i would really appreciate it

Frequency of electromagnetic waves that a radio station is assigned. what do you call this type of wave?