millie and lily are identical twins who enjoy swimming their arms and legs provide the force needed to move them through the water millie can swim 25min in 50s lily can swim 100m in 250s a)calculate the swimming speed of each twin b) which twin has greater power when swimming.​

Aforce of 34n stretches a very light ideal spring 0.73 m from equilibrium, what is the force constant (spring constant) of the spring? (a) 47n/m (b) 38n/m (c) 53n/m (d) 25n/m

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?