Intro to MasteringEngineerng

What is the complex conjugate of vector A?

(A)∗

What is the area of a rectangle that is 3.1 cm wide and 4.4 cm long? Enter the full-precision answer first to see the corresponding feedback before entering the properly-rounded answer. (You do not need to enter the units in this case since they are provided to the right of the answer box).

14 cm^2

The complex conjugate of 2+j3 is represented by (2+j3)∗. Enter the complex conjugate of 2+j3 below.

2 - 3j

What is (1+2j) + (1+3j)? Your answer should contain three significant figures.

2.00+5.00j

What is 10∠ 30 + 10∠ 30? Answer in polar form. Note that the angle is measured in degrees here.

20∠30

The momentum of an object is determined to be 7.2 × 10-3 kg⋅m/s. Express this quantity as provided or use any equivalent unit. (Note: 1 kg = 1000 g).

7.20*10^-3 kg*m/s

Calculate the volume of a rectangular prism with a length of 4.4 cm, a width of 3.1 cm, and a height of 6.3 cm. (As before, you do not need to enter the units since they are provided to the right of the answer box.)

86 cm^3