Will mark brainliest for best answer! check my work on the first question! not sure if it’s right. and do the 2nd question. i will mark brainliest for anyone who does those two things first!

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s