If the force on a spring is 2 N and it stretched 0.5 m, what is the spring constant? O A. 2 N/m
OB. 0.2 N/m
OC. 0.4 N/m
OD. 4 N/m

Apendulum has a mass of 1.5 kg and starts at a height of 0.4 m. if it is released from rest, how fast is it going when it reaches the lowest point of its path? acceleration due to gravity is g = 9.8 m/s2. a. 2.8 m/s b. 0 m/s c. 5.9 m/s d. 4.3 m/s

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.