a roller coaster car may be approximated by a block of mass m. the car, which starts from rest, is released at a height h above the ground and slides along a frictionless track. the car encounters a loop of radius r, as shown. assume that the initial height h is great enough so that the car never loses contact with the track.

It is important to prepare both your mind and body to adequately prepare for success the day of the act exam. in a short paragraph describe some of the ways you can prepare your mind and body the day of the exam. feel free to include additional preparation tactics beyond what is included in this lesson. pz

The ancestors of horses possessed feet with five digits. over time, with the development of grasslands, the digits fused and formed hooves. what evolutionary advantage did this transformation serve? a. it allowed them to climb rocky surfaces with ease. b. it allowed them to graze better. c. it enabled them to run faster from predators. d. it let them see clearly through the grasslands. e. it made them taller.

What does the cyclopes invite odysseus back to the island