You are riding in an elevator on the way to the eighteenth floor of your dormitory. The elevator's upward acceleration is 1.91 m/s2. Beside you is the box containing your new computer; box and contents have a total mass of 29.0 kg. While the elevator is accelerating upward, you push horizontally on the box to slide it at constant speed toward the elevator door. Part A If the coefficient of kinetic friction between the box and elevator floor is 0.35, what magnitude of force must you apply

Ineed the answer to question 1 , i’m desperate

The process of predicting values that extend beyond the range of data points is called absolute value extrapolation interpolation prediction for any given: )

Amass m = 74 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius r = 18.4 m and finally a flat straight section at the same height as the center of the loop (18.4 m off the ground). since the mass would not make it around the loop if released from the height of the top of the loop (do you know why? ) it must be released above the top of the loop-the-loop height. (assume the mass never leaves the smooth track at any point on its path.) 1. what is the minimum speed the block must have at the top of the loop to make it around the loop-the-loop without leaving the track? 2. what height above the ground must the mass begin to make it around the loop-the-loop? 3. if the mass has just enough speed to make it around the loop without leaving the track, what will its speed be at the bottom of the loop? 4. if the mass has just enough speed to make it around the loop without leaving the track, what is its speed at the final flat level (18.4 m off the ground)? 5. now a spring with spring constant k = 15600 n/m is used on the final flat surface to stop the mass. how far does the spring compress?