What is the magnitude of Å + B + Č, where A = 1.00 i + 4.00 j - 1.00 k, B = 3.00 i - 1.00 j - 4,00 k and Č = -1.00 i + 1.00 j? A) 2.00 B) 6.78 C) 7.07 D) 8.12 E) 10.76
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- 7) (2 pt) What is the magnitude of Á + B + Č, where Å = 1.00 i+ 4.00 i - 1.00 k, B = 3.00 î - 1.00 j - 4.00 k and Č = -1.00 i + 1.00 i? A) 2.00 B) 6.78 C) 7.07 D) 8.12 E) 10.761 If D= (6.001 - 5.00j) m, B= (-5.00 +6.00j) m, and A (1.001- 10.05) m, find the unknown constants a and b such that aD + bB+A=0. a = -2.31578947 X b = 6.1 XFigure E1.28 у В (15.0 m) D (10.0 m) 30.0° 53.00 25.0° Č (12.0 m) A (8.00 m) e. Solve for B x C and C • B.
- A Moving to the next question prevents changes to this answer. Question 5 V = 2.00 î + 6.00 ĵ - 3.00 k . The magnitude of Let is: 5.00 a. 7.42 b. 5.57 С. 7.00 d. A Moving to the next question prevents changes to this answer.1. Suppose the position vector for a particle is given as a func- tion of time by 7(1) = x(t)i + y(t) j, with x(t) y(t) = ct² + d, where a = = at + b and = 0.125 m/s², 1.00 m/s, b = 1.00 m, c= 1.00 m. (a) Calculate the average velocity during and d the time interval from t = 2.00 s to t = 4.00 s. (b) Determine the velocity and the speed at t = 2.00 s.(a) Taking A = (6.00 î – 8.00 j) units, B = (-8,00 Î + 3.00 j) units, and C = (26.0 î + 19.0 ĵ) units, determine a and b such that a à + b B + T = 0. (b) A student has learned that a single equation cannot be Figure P22 solved to determine values for more than one unknown in it. How would you explain to him that both a and b can be determined from the single equation used in part (a)?
- The equation for the ideal gas is (P – a/V2) (V-b) = K. Here P is the pressure, V is the volume of the gas. If a and b are constants, what is the the units of a/b.Work done in blocuing a soap bubble of diameter 2 cm is (S.T. = 3 x 102 N/mm). (a) 7.54 x 10-5 J (b) 7.54 × 106 J (Ⓒ) 7.54 x 10³] (d) 7.54JFigure E1.28 y В (15.0 m) D (10.0 m) 30.0° 53.00 25.0° Č (12.0 m) A (8.00 m) d. Solve for A • C and C• Ā.
- Using AMM, solve for: a. Y. (mm) b. ӨЕ (гad) P= 128 kN E = 200 GPa, I= 3.125x10° mm* P (kN) kN/m 75 60 kN/m 2m 1m 3m 3m 90 kN.m A B ESuppose that À = 2i + j, B = i– 4j +k, and Ĉ = j+k. ... What is À· (B x Ĉ), A) A. -2 В) в. -2 k (с) с. -11 D) D. -11 kEstimate the number of people in the world who are suffering from the common cold on any given day. (Remember that a person suffers from a cold for about a week, and assume that the average person catches a cold twice a year. The population of Earth is approximately seven billion.) O 10² O 105 O 108 O 10¹3