Problem 427RE: True or False? Justify your answer with a proof or a counterexample. 427. Vector field... Problem 428RE: True or False? Justify your answer with a proof or a counterexample. 428. For vector field... Problem 429RE: True or False? Justify your answer with a proof or a counterexample. 429. The divergence of a vector... Problem 430RE: True or False? Justify your answer with a proof or a counterexample. 430. If curl F=0 , then F is a... Problem 431RE: Draw the following vector fields. 431. F(x,y)=12i+2xj Problem 432RE: Draw the following vector fields. 432. F(x,y)=yi+3xjx2+y2 Problem 433RE: Are the following the vector fields conservative? If so, find the potential function f such that F=f... Problem 434RE: Are the following the vector fields conservative? If so, find the potential function f such that F=f... Problem 435RE: Are the following the vector fields conservative? If so, find the potential function f such that F=f... Problem 436RE: Are the following the vector fields conservative? If so, find the potential function f such that F=f... Problem 437RE: Evaluate the following integrals. 437. Cx2dy+(2x3xy)dx , along C:y=12x from (0,0) to (4,2) Problem 438RE: Evaluate the following integrals. 438. Cydx+xy2dy , where C:x=t,y=t1,0t1 Problem 439RE: Evaluate the following integrals. 439. Sxy2dS , where S is surface z=x2y,0x1,0y4 Problem 440RE: Find the divergence and curl for the following vector fields. 440. F(x,y,z)=3xyzi+xyezj3xyk Problem 441RE: Find the divergence and curl for the following vector fields. 441. F(x,y,z)=exi+exyj+exyzk Problem 442RE: Use Green’s theorem to evaluate the following integrals. 442. C3xydx+2xy2dy , Where C is a square... Problem 443RE: Use Green’s theorem to evaluate the following integrals. 443. C3ydx+(x+ey)dy , where C is a circle... Problem 444RE: Use Stokes’ theorem to evaluate ScurlFdS . 444. F(x,y,z)=yixj+zk , where S is the upper half of the... Problem 445RE: Use Stokes’ theorem to evaluate ScurlFdS . 445. F(x,y,z)=yixyzj+2zxk , where S is the upward-facing... Problem 446RE: Use the divergence theorem to evaluate SFdS . 446. F(x,y,z)=(x3y)i+(3yex)j+(z+x)k , over cube S... Problem 447RE: Use the divergence theorem to evaluate SFdS . 447. F(x,y,z)=(2xy)i+(y2)j+(2z3)k , where S is bounded... Problem 448RE: Find the amount of work perfumed by a 50 -kg woman ascending a helical staircase with radius 2m and... Problem 449RE: Find the total mass of a thin wire in the shape of a semicircle with radius 2 , and a density... Problem 450RE: Find the total mass of a thin sheet in the shape of a hemisphere with radius 2 for z0 with a density... Problem 451RE: Use the divergence theorem to compute the value of the flux integral over the unit sphere with... format_list_bulleted