Riding a Loop-the-Loop. A car in an amusement park ride rolls without friction around a track. The car starts from rest at point A at a heighth above the bottom of the loop. Treat the car as a particle. (a) What is the minimum value of h (in terms of R) such that the car moves around the loop without falling off at the top (point B)? (b) If h = 3.50R and R = 14.0 m, compute the speed and radial acceleration at point C at which is halfway down to the bottom of the circular path? Hint: Solve for minimum speed at the top of the loop. Use net force F = mg =mv^2/R where normal force N = 0 at minimum speed. B CR

Complete the missing entries in the table of metric prefixes, symbols, and multiplication factors. Pay attention to capitalization in the Prefix Symbol column, and specify whether the prefix is upper or lower case in the right-most column. The rows are not in any particular order. Example 1. 2. 3. 4. 5. Multiplier 10-¹2 10-2 10-3 Prefix Name pico kilo mega Prefix Symbol Р G Upper or lower case prefix? lower upper

Problem 2. 1-3

Compute the Force using Newtons Law. mass = 2.29, à = (-) Rows: 1 Columns: 1

How should the computed result be reported, to the proper number of significant figures, for the following set of 0.0053 ? 2.7800 mathematical operations? (112.2 - 5.2) × A. 0.2040 B. 0.20 C. 0.204 D. 0.20399 O E. 0.2