A program will “fall through” a case section if it is missing the __________ statement.

A program will "fall through" a case section if it is missing the _______ statement.

The position of a particle moving along a coordinate line is s = sqrt(1 + 4t), with s in meters and t in seconds. Find the particle’s velocity and acceleration at t = 6 sec.

Complete the if statements in the following program skeleton.

#include <iostream>

#include <cstring>

using namespace std;
int main() {
   const int SIZE = 20;
   char iceCream[SIZE];
   cout << "What flavor of ice cream do you like best? ";
   cout << "Chocolate, Vanilla, or Pralines and Pecan? ";
   cin.getline(iceCream, SIZE);
   cout << "Here is the number of fat grams for a half ";
   cout << "cup serving:\n";
   //
   // Finish the following if/else if statement
   // so the program will select the ice cream entered
   // by the user.
   //
   if ( /* insert your code here */ )
      cout << "Chocolate: 9 fat grams.\n";
   else if ( /* insert your code here */ )
      cout << "Vanilla: 10 fat grams.\n";
   else if ( /* insert your code here */ )
      cout << "Pralines & Pecan: 14 fat grams.\n";
   else
      cout << "That's not one of our flavors!\n";
   return 0;
}

Indicate whether the following strcmp function calls will return 0, a negative number, or a positive number. Refer to the ASCII table in Appendix A if necessary.

D) strcmp("Sammy", "Sally");

How much work does it take to stretch a spring with k=200 N/m

(a) 10 cm from equilibrium

(b) from 10 cm to 20 cm from equilibrium?

You slide a box of books at constant speed up a 30 degree ramp, applying a force of 200 Newton directed up the slope. The coefficient of sliding friction is $0.18$.

(a) How much work have you done when the box has risen $1 \mathrm{~m}$ ver- tically?

(b) What's the mass of the box?

A cyclotron accelerates protons from rest to 21 Mm/s. How much work does it do on each proton?

A sprinter completes a 100 m dash in 10.6 s, doing 22.4 kJ of work. What's her average power output?

You pull a box 23 m horizontally, using the rope shown in given figure. If the rope tension is 120 Newton, and if the rope does 2500 Joule of work on the box, what angle $\theta$ does the rope make with the horizontal?

A tractor tows a plane from its airport gate, doing 8.7 MJ of work. The link from the plane to the tractor makes a 22 degree angle with the plane's motion, and the tension in the link is $0.41 \mathrm{MN}$. How far does the tractor move the plane?

An elevator ascends from the ground floor to the 10th floor, a height of 41 m, in 35 second. If the mass of the elevator and passengers is 840 kg, what's the power necessary to lift the elevator?

The force shown in Figure moves an object from $x=0$ to $x=0.75 \mathrm{~m}$. How much work is done by the force?

Indicate whether the following strcmp function calls will return 0, a negative number, or a positive number. Refer to the ASCII table in Appendix A if necessary.

C) strcmp("123", "ABC");