A block of mass 3.60 kg is placed against a horizontal spring of constant k = 745 N/m and pushed so the spring compresses by 0.0600 m. a) What is the elastic potential energy of the block-spring system (in J)?

b) If the block is now released and the surface is frictionless, calculate the block's speed (in m/s) after leaving the spring.

Which of the following statements is not true about regions? a.) regions have fixed boundaries that are determined by the region's inhabitants.b.) a region can be defined by physical characteristics, such as climate, landform, and vegetation.c.) regions can change over time.d.) a region can be defined by human characteristics, such as language, government, and economic activity.e.) the same location can be considered part of multiple regions.

12. identify the main term from the following statement: arthrotomy of toe, interphalangeal joint

Which statements describe continental crust? select the three correct answers. a-it is formed in all parts of the continents. b-it is made mostly of volcanic rock. c-it is destroyed by melting near the top of the mantle. d-it is less than 10 km thick. e-its ages ranges from very young to more than 4 billion years old.