Blog

An object is moving at 10 m/s and moves in the positive direction along a straight line in one dimension before coming to a stop. In what direction, relative to the displacement, does the acceleration vector point??

For #3 – 8, let

Complete the loop so that MATLAB displays: 108642   =====Loop========== for k = [BOX1] : [BOX2] : [BOX3]    disp(k)end    

Why is sind(t) used instead of sin(t) when t is given in degrees?

If x = [2 5 1 8]; y = x > 3; then y is the logical vector [0 1 0 1]

Complete the missing line so that all positive values in x remain unchanged and all other values become zero. Guideline: Do not put spaces between operators. ================================== function y=getpositive(x) [Fill up This Line! ] end ====================================   For example, if: x=[-3 5 -2 8 0 4] the function should return y=[0 5 0 8 0 4]  

How many times does this loop execute?   for k = 2:2:10    disp(k)end      

Given the following matrices:   A = [1  2  3  4;     5  6  7  8;     9 10 11 12;    13 14 15 16]; B = [-6  -12  -18  -24;     -30 -36  -42  -48;     -54 -60  -66  -72;     -78 -84  -90  -96];   You want to multiply matrices A and B, store the result in C, and then extract rows 2 and 3 and columns 3 and 4 of C. Which MATLAB code correctly performs these operations?  

Given A=[1 2 3;4 5 6];B=A’;   B has three rows and two columns.

The commands clear and clc perform the same operation in MATLAB