Consider two vectors a~ and b~ and their resultant a~ + b~ . the magnitudes of the vectors a~ and b~ are, respectively, 15 and 7.3 and they act at 86◦ to each other. a~ b~ a~ + b~ find the magnitude of the resultant vector a~ + b~ . 005 (part 2 of 2) 4.0 points find the angle between the direction of the resultant vector a + b and the direction of the vector a. answer in units of ◦ .

17.13 ,1.31°

Explanation:

Magnitude of vector A = 15

Magnitude of vector B = 7.3

Angle between A and B is θ = 86°

Let the magnitude of the resultant is R.

use the formula for the resultant of two vectors

R = 17.13

Let the angle between A and R is α.

tan α = 0.02286

α = 1.31°

b.a device that inputs heat into a cool object

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)