Quantities of differenct units cannot be addeded or subtracted .They can be multiplied or divided
X/Y or X*Y can be done
eX+Y cannot be done
X+Y or X-Y cannot be done
X2+Y2 or X2-Y2 cannot be done
X1/3 or Y1/3 can be done
X and Y are dimensionally different. (They have different units.) Select ALL the physically meaningful operations...
Contents HW1 Unit Operations X and Y are dimensionally different. (They have different units.) Select ALL the, ysically meaningful operations True , X2 or Y2 False X/Y or X*Y 0 eyre True X1/3 or y1/3 TrueX+Y or X-Y Submit Answer Incorrect. Tries 2/8 Previous Tries
Suppose two quantities, A and B, have different dimensions. Determine which of the following arithmetic operations could be physically meaningful. (Select all that apply.) B − A A/B AB A − B A + B
Which of the following will have units of meters? Select all that
apply.
13% Part (a) Using dimensional analysis, determine the units of the quantity Sele Correct! 13% Part (b) Which of the following will have units of meters? Select all that apply. 2 1/2 a (Ar) 2ar Submit Hint Fedback ints:2a deduction per hint. Hints remaining: Feedback: 1 for a 50% deduction The units of v Ar are m's/s m/s2 One or more choices in your selection 13% Part...
Consider the function f(x, y) = -8 – 2y – x+y + x2 + 1972. How many relative maxima, relative minima, and saddle points does f(x,y) have? NOTE: ONLY 3 ANSWER TRIES ON THIS PROBLEM. relative minima saddle point relative maxima Submit Answer Tries 0/3 This discussion is closed. Send Feedback
The following equations, all using SI units unless otherwise noted, describe waves propagating along five different strings, all with the same length and the same tension. Which, if any, of the strings have equal masses? String A: y(x,t) = (2cm)sin(3x−10t) String B: y(x,t) = (1cm)sin(1x−4t) String C: y(x,t) = (1cm)sin(3x−4t) String D: y(x,t) = (1cm)sin(4x−12t) String E: y(x,t) = (2cm)sin(6x−24t) If two or more strings have equal mass, select all of them below. If all the masses are different, select...
I GOT C, B, AND F.
Am I missing one?
Two subspaces X, Y C Rn are orthogonal if what is true? Select all of the following that apply. (A) There is an x E X and a y E Y where xTyメ0. (B) Given any x E X and any y E Y we have хту-0 (C) XLY. (D) X Y. (E) XCYor YCX (F) There is an x X and a y e Y where xTy 0. (G)...
(b) y = (2 m) cos(kx), where k = 2m-1 0 This equation is dimensionally correct. O This equation is not dimensionally correct. Need Help? Resd R 8. " +-/1 points SerPSE10 1.4.OP007 A large industrial loader can move 1,100 tons/h of gravel from one point to another an a work site. What is this rate in lb/s? Note that 1 ton 2,000 iB. b/s Need Help? İmana My No 9. -/1 points SerPSE10 14.OP008. A rectangular plot of farmland...
Let Select all that apply
Let z =f(x,y)= arctan(3x In(6) Select all that apply Your answer: The slope of the tangent line to the curve obtained by intersecting the 9 surface z =f(x,y) and plane x = 3 at the point (3,6) is 6(811n (36) + 1) + fxy 54x2In(6y)+3) y(18x2in(6) + 1)2 (fxx (4,2))-(fvx(4,2)) = 0 The slope of the tangent line to the curve obtained by intersecting the 3In(36) surface z = f(x,y) and plane x = 3 at...
3 Students and a Textbook-Extended +X students converge on the last textbook in the store. All three grab it and begin to pull in the directions shown in the above figure. Student A exerts a force of 55.46 N, student B puils with a force of 17.30 N, and student C pulls with a force of 59.33 N at an angle 6(theta)-72.61 degrees above the -x axis. (The drawing is not to scale.) You want to determine the net force...
Given the vector field F = <(x^2)y + (y^3) − y , 3x + 2(y^2)x + e^y> For which simple closed curve in the plane does the line integral over this vector field have a maximal value? Find this value. Should we have expected the line integral over all simple closed curves to be zero?