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• ### A water balloon is launched with an initial speed of 40 m/s at 60 degrees above...

A water balloon is launched with an initial speed of 40 m/s at 60 degrees above the horizontal. A tall building is 40 m from the launch site. Neglect air resistance and use g = 10 m/s^2. (numbers 8-11) A water balloon is launched with an initial speed of 40 m/s at 60 degrees above the horizontal. A tall building is 40 m from the launch site. Neglect air resistance and use g 10 m/s2 8. How much time does...

• ### (c) 10.383 m/s (d)11.810 m/s 19. What is the gravitational potential energy of a book of...

(c) 10.383 m/s (d)11.810 m/s 19. What is the gravitational potential energy of a book of mass 4.00 kg if it is held at a height of 5.50 m above the floor? (Take zero potential energy to be at the floor.) (a) 22.0J (b) 405.1 J (c) 314.2 (d) 215.6J 20. Which of the following is, in general, not a conserved quantity? (a) Linear momentum (b) Angular momentunm (c) Total energy (d) Kinetic energy 21. A bullet of mass 35.0...

• ### 39) What property of liquids explains the formation of leaves? A) surface tension B) adhesion C)...

39) What property of liquids explains the formation of leaves? A) surface tension B) adhesion C) viscosity D) vapor pressure E) None of the choices are correct. mation of spherical water droplets on green 3 9) - um at constant pressure and temperature has the volume 40) 40) A balloon containing helium at constant pres doubled by adding a more helium. Which ' adding a more helium. Which statement(s) isare) TRUE? A) The number of moles of helium doubled. B)...

• ### Question 19 What is the inverse of the matrix 3-m 12+5m 5 b. 1 3-m 12-5m5...

Question 19 What is the inverse of the matrix 3-m 12+5m 5 b. 1 3-m 12-5m5 4 c. 1 3 -m 12 +5ml -5 4. d. 4 m 12 +5m15 3 m[s > Click Submit to complete this assessment. MacBook Pro % 5 0 4 E Moving to another question will save this response Question 18 The determinant of the matrix -3 3-4 2 OK 3 0 4 al a. 3(8-3) b.3(3k - 8) c-> d. 3(3k+8) > Moving to...

• ### Came: 7. What centripetal force does an 100-kg passenger experience when seated 15 m from the...

Came: 7. What centripetal force does an 100-kg passenger experience when seated 15 m from the center of a Ferris wheel whose angular speed is 0.75 rad/s? a 844 N b. 458 N c. 127N d. 978 N 8. A spool of thread has an average radius of 2.00 cm. If the spool contains 75 m of thread, how many turns of thread are on the spool? "Average radius" allows us to not need to treat the layering of threads...

• ### please question a,b,c,d,e (10%) Problem 2: A block having a mass of m= 12 kg is...

please question a,b,c,d,e (10%) Problem 2: A block having a mass of m= 12 kg is suspended via two cables as shown in the figure. The angles shown in the figure are as follows: a = 13° and B = 26°. We will label the tension in Cable 1 as T, and the tension in Cable 2 as 12. Cable 1 Cable 2 - Otheexpertta.com A 20% Part (a) From the images below, choose the correct free body diagram. Grade...

• ### a) 1 (b) 2 (c) 5 E-hu (e) 7 12. What is the de Broglie wavelength of an O2 molecule traveling at 521 m/s? ca) 2.39 x...

a) 1 (b) 2 (c) 5 E-hu (e) 7 12. What is the de Broglie wavelength of an O2 molecule traveling at 521 m/s? ca) 2.39 x 10-11 m (b) 3.75 x 10-6 m (c) 4.18 x 10-12 m (d) 3.75 x 10-10 m (e) 5.21 x 10-10 m y mop h (32) (521)

• ### QUESTION 4 Use the reaction: I2(s) - I2(aq) to calculate the molar solubility of I2(s) in water. 12(aq) + 2 e-2 l'E"-+ 0.615 V 12(s)+2e-2IE 0.5355 V A. -1.1505 B. +1.1505 C.-0.0795 D. +0.0795...

QUESTION 4 Use the reaction: I2(s) - I2(aq) to calculate the molar solubility of I2(s) in water. 12(aq) + 2 e-2 l'E"-+ 0.615 V 12(s)+2e-2IE 0.5355 V A. -1.1505 B. +1.1505 C.-0.0795 D. +0.0795 E. 1.33 x 10-39 F 2.05 X 10-3 G. 1.15 X 10 H. 7.84 X 1038 I. 0.5203 Eo for the solubiliy reaction: 12(s) 12(aq) K for the solubility reaction: I2s)I2(aq) \$ Molar solubility of 12(s) in water - Solubility (in g/L) of I2(s) in water...

• ### PART A PART B PART C PART D (1 point) A mass m = 4 kg...

PART A PART B PART C PART D (1 point) A mass m = 4 kg is attached to both a spring with spring constant k = 197 N/m and a dash-pot with damping constant c=4N s/m. The mass is started in motion with initial position to 3 m and initial velocity vo = 6 m/s. Determine the position function r(t) in meters. x(1) Note that, in this problem, the motion of the spring is underdamped, therefore the solution can...

• ### X) The answers: a) 0.315 V c) 0.273 V d) 1.80 M 10. For the voltaic cell: Cd(s) Cd2 (0.100 M, 25 mL) || Pb2 (2.000 M, 25 mL) | Pb(s) a. What is Eel initially? (E 0.277 v) b. If the cell is allowed to...

X) The answers: a) 0.315 V c) 0.273 V d) 1.80 M 10. For the voltaic cell: Cd(s) Cd2 (0.100 M, 25 mL) || Pb2 (2.000 M, 25 mL) | Pb(s) a. What is Eel initially? (E 0.277 v) b. If the cell is allowed to operate spontaneously, will Eel increase, decrease or remain constant with time? Explain. c. What will be Ee when [Pb2"] has fallen to 0.900 M? [Hint: Both concentrations change. Why?] d. What will be [Cd2"]...