WyzAnt Answershttps://www.wyzant.com/resources/answers/questions?f=activeAsk questions and get free answers from professional tutorsFri, 29 Jul 2016 06:08:37 -0500https://www.wyzant.com/images/wyzant-logo-type-white.pngWyzAnt Answershttps://www.wyzant.com/resources/answers/questions?f=activehttps://www.wyzant.com/resources/answers/questions?f=active471757https://www.wyzant.com/resources/answers/229907/a_what_is_the_potential_difference_across_r1_b_if_10_a_flows_out_of_the_battery_what_is_the_current_through_r1_c_what_is_the_resistance_of_r1Piper from Brea, CAhttps://www.wyzant.com/resources/answers/users/view/86497197Physics(a) What is the potential difference across R1??? (b) If 10 A flows out of the battery, what is the current through R1??? (c) What is the resistance of R1? ?? (<div>Circuit R1 has 7 V, R2 has 13 V... the total voltage is 20 V<br /><br />(a) What is the potential difference across R1???<br />(b) If 10 A flows out of the battery, what is the current through R1???<br />(c) What is the resistance of R1? ??<br />(d) What is the resistance of the 7 V load?</div>Wed, 27 Jul 2016 23:44:01 -05002016-07-27T23:44:01-05:00471935https://www.wyzant.com/resources/answers/230077/on_any_sphere_w_360_degrees_per_each_circumference_solve_for_x_the_total_of_one_degree_points_regardless_of_volume_on_each_and_every_sperical_surfaceRob from Noblesville, INhttps://www.wyzant.com/resources/answers/users/view/86499259Geometry CirclesOn any sphere. w/ 360 degrees per each circumference solve for x the total of one degree points, regardless of volume, on each and every sperical surface<div><em> </em>I take a golf ball. I design it with exactly one dimple per degree of any proposed circumference. Many of the</div>
<div>various circumferences intersect, which means subtracting 2 degrees from all but the first circumference. With</div>
<div>my question I'm inserting a condition that every dimple is exactly one degree from every other dimple. </div>
<div> </div>
<div>I've searched this question online and am thwarted by not being able to pose it in a manner that a search</div>
<div>will solve it.</div>
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<div>Any sphere, no matter whether the radius is one inch or one mile will have, as a math truth, exactly 360 degrees</div>
<div>on any circumference. The distance between the points that represent the degrees points may be micro inches or</div>
<div>acres, but 360 is the max. </div>
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<div>Now this given, how many of these points, these acres for instance, are there on any and every sphere?</div>
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<div>And why can't I find this one and only answer online.</div>
<div>I think it is 360 x 358 = 128,880</div>Fri, 29 Jul 2016 01:35:18 -05002016-07-29T01:35:18-05:00471949https://www.wyzant.com/resources/answers/230089/how_did_the_politics_of_the_gilded_age_fail_to_deal_with_the_social_and_economic_issues_of_the_timesMolly from Ramsey, NJhttps://www.wyzant.com/resources/answers/users/view/86499302American HistoryAP U.S. HistoryGilded Age American HistoryHow did the politics of the gilded age fail to deal with the social and economic issues of the times<div>Pls give as much info as possible.</div>Fri, 29 Jul 2016 05:10:01 -05002016-07-29T05:10:01-05:00471950https://www.wyzant.com/resources/answers/230091/find_the_sixth_degree_taylor_polynomial_p_x_about_0_for_the_function_f_x_e_x_cos_21_8_x_2Kirsty from New York, NYhttps://www.wyzant.com/resources/answers/users/view/86499304Taylor PolynomialFind the sixth-degree Taylor polynomial p(x) about 0 for the function f(x) = -e x cos ( 21/8 x 2 )<div>Find the sixth-degree Taylor polynomial p(x) about 0 for the function f(x) = −e^x cos ( 21/8 x^2 ) </div>Fri, 29 Jul 2016 05:16:00 -05002016-07-29T05:16:00-05:00471948https://www.wyzant.com/resources/answers/230087/a_stationary_particle_is_placed_in_a_laser_beam_find_forces_on_chargeOlivia from Gilbert, AZhttps://www.wyzant.com/resources/answers/users/view/86499300PhysicsA stationary particle is placed in a laser beam. Find forces on charge.<div>A stationary particle of charge ?? = 2.6 × 10^−8 ?? is placed in a laser beam (an electromagnetic wave) whose intensity is 2.5 × 10^3 ??/??2. <br />(a) Determine the magnitude of the electric and magnetic forces exerted on the charge. <br />(b) If the charge is moving at a speed of 3.7 × 10^4 ??/?? perpendicular to the magnetic field of the electromagnetic wave, find the magnitudes of the electric and magnetic forces exerted on the charge.</div>
<div>The answers are supposed to be:</div>
<div>(a) ?????????????????? = 2.52 × 10^−5 ?? ?????????????????? = 0 (b) ?????????????????? = 2.52 × 10^−5 ?? ?????????????????? = 3.12 × 10^−9 ??</div>
<div>I just don't understand what to do or how to get to the answers. Please help me by telling me the steps and such.</div>Fri, 29 Jul 2016 05:02:47 -05002016-07-29T05:02:47-05:00471931https://www.wyzant.com/resources/answers/230075/if_a_current_balance_looked_like_this_usd_4_0000_does_that_mean_it_39_s_forty_thousand_dollarsJerp from Los Angeles, CAhttps://www.wyzant.com/resources/answers/users/view/86499244Financial MathematicsIf a current balance looked like this USD 4,0000 does that mean it's forty thousand dollars?<div>Weird number</div>Fri, 29 Jul 2016 00:56:00 -05002016-07-29T00:56:00-05:00471941https://www.wyzant.com/resources/answers/230083/2006_pt_cruiser_wont_crank_changed_battery_starterThomas from Cedartown, GAhttps://www.wyzant.com/resources/answers/users/view/86499286Car Repair2006 pt cruiser wont crank changed battery starter <div>Will starter relay replacement help me</div>
<div> </div>Fri, 29 Jul 2016 02:49:24 -05002016-07-29T02:49:24-05:00471939https://www.wyzant.com/resources/answers/230079/word_problemHope from West Palm Beach, FLhttps://www.wyzant.com/resources/answers/users/view/86499228Word ProblemWord problem<div>One car rental agency charges $0.29 per mile plus a $10 weekly fee. Another rental agency charges $0.35 per mile with no fee. You need to rent a car for three weeks. </div>
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<div>Write te and solve an equation to find the number of miles for which both agencies will charge the same. </div>Fri, 29 Jul 2016 02:17:07 -05002016-07-29T02:17:07-05:00471923https://www.wyzant.com/resources/answers/230063/rate_of_changeJoy from Brooklyn, NYhttps://www.wyzant.com/resources/answers/users/view/86489824Rate of Change<div>A block of ice in the form of a cube with sides x cm, melts at the rate of 6.45 cm<sup>3</sup> per minute. Find the rate of change of x at the instant when x = 10 cm.</div>Thu, 28 Jul 2016 23:39:13 -05002016-07-28T23:39:13-05:00471925https://www.wyzant.com/resources/answers/230067/integrationJoy from Brooklyn, NYhttps://www.wyzant.com/resources/answers/users/view/86489824Integration<div>integrate ∫ 4x(x-1) / (2x-1)<sup>2</sup></div>Thu, 28 Jul 2016 23:45:10 -05002016-07-28T23:45:10-05:00471893https://www.wyzant.com/resources/answers/230033/see_detailsJuan from Saint Louis, MOhttps://www.wyzant.com/resources/answers/users/view/86496832Trigonometry.MathEquationsSee Details<div>Consider the equation z^{11} = (1 + \sqrt{3}\, i). Find the value of z which satisfies this equation and which has the second smallest positive argument \theta, 0 < \theta < 2\pi. Express your answer as z = r e^{i \theta} where <br />r = and \theta =</div>Thu, 28 Jul 2016 19:58:42 -05002016-07-28T19:58:42-05:00471926https://www.wyzant.com/resources/answers/230069/probabilityHope from West Palm Beach, FLhttps://www.wyzant.com/resources/answers/users/view/86499228ProbabilityProbability<div>A pack of cards has a 10% chance of containing a rare card. You buy 10 packs of cards. What is the probability that you end up with at least 2 rare cards?</div>Fri, 29 Jul 2016 00:37:25 -05002016-07-29T00:37:25-05:00471940https://www.wyzant.com/resources/answers/230081/business_maths_linear_programmingKiat from New York, NYhttps://www.wyzant.com/resources/answers/users/view/86499274Business Mathbusiness maths linear programming<div>A company manufactures two types of window frames: Timber frames and Composite<br />frame. The time available for some of the key manufacturing stages is limited. At<br />present only 2000 hours of cutting time and 1000 hours of assembly time are available<br />each month. The following table shows the time required to produce each frame in two<br />manufacturing stages.</div>
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<div>Manufacturing Stage Time (in hours)<br /> Timber frame Composite frame<br />Cutting 5 2<br />Assembly 2 2</div>
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<div>The profits for each Timber frame and Composite frame are RM 400 and RM 100<br />respectively.<br /><br /> (i) Formulate a linear programming by stating the objective function and all the<br />constraints.<br /><br /> (ii) Solve the linear programming graphically to obtain the optimal product mix and<br />the maximum monthly profit contribution.<br /><br /> (iii) Suppose that the labour force in the cutting department is prepared to work<br />overtime, would it profitable for the company to work overtime if an overtime<br />premium of RM 70 an hour is paid?<br /><br /> (iv) If to work overtime in the cutting department, how many extra hours would you<br />recommend and what would be the extra profit from these hours?</div>Fri, 29 Jul 2016 02:25:51 -05002016-07-29T02:25:51-05:00471888https://www.wyzant.com/resources/answers/230029/look_at_description_find_the_value_of_z_which_satisfies_this_equation_and_which_has_the_second_smallest_positive_argument_theta_where_r_and_thetaJuan from Saint Louis, MOhttps://www.wyzant.com/resources/answers/users/view/86496832TrigonometryLook at Description Find the value of z which satisfies this equation and which has the second smallest positive argument \theta, where r = and \theta = <div>Consider the equation z^{15} = (1 + \sqrt{3}\, i). Find the value of z which satisfies this equation and which has the second smallest positive argument \theta, 0 < \theta < 2\pi. Express your answer as z = r e^{i \theta} where r = and \theta =</div>Thu, 28 Jul 2016 19:10:14 -05002016-07-28T19:10:14-05:00471871https://www.wyzant.com/resources/answers/230013/recursion_and_recurrence_relations_home_workJedi from Houston, TXhttps://www.wyzant.com/resources/answers/users/view/86487009Applied MathRecursion and Recurrence Relations (Home Work)<div>1. Write down all derangements of the set {α,b,c,d} and show that the number of derangements is the same as predicted by the recurrence D(n) = (n - 1)(D(n - 2) + D(n - 1)) with initial values D(1) = 0 and D(2) = 1.</div>
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<div>2. Let αk = 3k + k - 2 for all k ≥ 0.<br /><br />a. Write down the values of α1, α2 and α3.<br /><br />b. Write down the values of A(1), A(2) and A(3) defined by the recurrence relation: A(0) = -1, A(k) = 3A(k-1) - 2k + 7, k ≥ 1.<br /><br />c. Show that A(k) = αk is a solution of the recurrence relation for all values of k ≥ 1.<br /><br /><br /> 3. Solve the recurrence relation A(n) = 6A(n - 1) - 11A(n - 2) + 6A(n - 3) subject to initial values A(1) = 2, A(2) = 6, A(3) = 20.</div>Thu, 28 Jul 2016 17:46:06 -05002016-07-28T17:46:06-05:00471924https://www.wyzant.com/resources/answers/230065/rate_of_changeJoy from Brooklyn, NYhttps://www.wyzant.com/resources/answers/users/view/86489824Rate of change<div>The volume of a sphere is increasing at a constant rate of 19.2 pi cm<sup>3</sup>s<sup>-1</sup>. Find the radius of the sphere at the instant when the radius is increasing at a rate of 0.3 cm s<sup>-1</sup> .</div>Thu, 28 Jul 2016 23:44:14 -05002016-07-28T23:44:14-05:00471904https://www.wyzant.com/resources/answers/230047/what_is_the_decimal_equivalent_of_the_rational_number_6_11Faith from West Palm Beach, FLhttps://www.wyzant.com/resources/answers/users/view/86499113Rational NumbersRational Numbers, Decimal EquivalentWhat is the decimal equivalent of the rational number 6/11<div>a. .54</div>
<div>b. .54 with line above the 4</div>
<div>c. .54 with line above the 5 and 4</div>
<div>d. 1.83</div>Thu, 28 Jul 2016 21:03:38 -05002016-07-28T21:03:38-05:00471896https://www.wyzant.com/resources/answers/230037/word_problesm_including_half_lifeGates from Navarre, FLhttps://www.wyzant.com/resources/answers/users/view/86453001Word ProblemCollege AlgebraWord problesm including Half-life<div>A superhero is rendered powerless when exposed to 55 or more grams of a certain element. A 350 year old rock that originally contained 650 grams of this element was recently stolen from a rock museum by the? superhero's nemesis. The? half-life of the element is known to be 100 years.<br />?a) How many grams of the element are still contained in the stolen? rock?<br />?b) For how many years can this rock be used by the? superhero's nemesis to render the superhero? powerless?</div>
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<div>I think part of my problem is that all the extra "superhero" information is throwing me off a bit. But if someone could just help me get started and explain to me what formulas to use, that would be great.</div>Thu, 28 Jul 2016 20:13:44 -05002016-07-28T20:13:44-05:00471677https://www.wyzant.com/resources/answers/229847/finding_domain_and_rangeSam from Ripon, CAhttps://www.wyzant.com/resources/answers/users/view/86497706AP CalculusFinding domain and range<div>f(x)= -<span class="citation">sqroot </span>x+3</div>Wed, 27 Jul 2016 16:53:30 -05002016-07-27T16:53:30-05:00471811https://www.wyzant.com/resources/answers/229959/a_person_uses_a_512_hz_tuning_fork_to_find_the_first_two_resonant_lengths_of_a_closed_air_column_in_a_very_warm_classroom_the_first_length_measured_was_17_1_cmPiper from Brea, CAhttps://www.wyzant.com/resources/answers/users/view/86497197PhysicsA person uses a 512 Hz tuning fork to find the first two resonant lengths of a closed air column in a very warm classroom. The first length measured was 17.1 cm<div>A person uses a 512 Hz tuning fork to find the first two resonant lengths of a closed air column in a very warm classroom. The first length measured was 17.1 cm and the second resonant length was 51.3 cm.<br /><br />(b) Calculate the wavelength of the tuning fork at that temperature.<br /><br />(c) Use the lab observations and analysis to find the speed of sound and the temperature of the room.</div>Thu, 28 Jul 2016 10:20:22 -05002016-07-28T10:20:22-05:00