b. A student has an 80 g sample of a radioactive material that has a half-life of 20 seconds. How much material will he have left after one minute? c. Given the periodic table below, write a beta decay equation for the transmutation of a radioactive isotope of Rutherfordium, which has 104 protons and 183 neutrons. Periodic Table of Eleme tra esde noa 1 2 3 4 5 7 9 10 11 12 13 14 15 16 17 18 1H Symbol Sold Nonmetals Metals

Q: Determine the tension in the cord BC and the horizontal and vertical components of the reaction at…

A:

Q: A 75.0 Kg person stands on a scale that reads 500. Newtons. The person is pulling on a rope that is…

A: The tension in the rope T=mg-N  =75.0 kg×9.81 ms2-500 N  =236 N

Q: 7.0 kg D. 8.0 kg 4.0 kg V2

A: Momentum of a particle of mass m moving with velocity v is given by    P = mv

Q: 1. A simple ramp set up for determining impact angle has a base of 14.3 cm and a height of 29.6 cm.…

A: we want to find angle θ for the ramp

Q: N. O a. 7.94 N Ob.-10.09 N

A: Given: Force is 8.3 N Angle is 17o Direction is counter-clockwise

Q: 1. Based on the values provided, complete the following table. Test No Weight (N) H1 (cm) H2 (cm)…

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Q: A In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire…

A:

Q: Test No Weight (N) H, (cm) H2 (cm) P.E. (initial) (J) P.E. (final) (J) Loss in P.E. (J) 1.0 50 30.5…

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Q: 6. In the given balance scale of kilograms below, find the following; a. The value of A. * 1000 D E…

A: From the given diagram, the mass of C is balanced with the 100 kg.'  So the mass of C is 100 kg. The…

Q: 02 T3 M

A:

Q: A 10731kg helicopter accelerates upward at 2.230ms2. The spinning blades create an upward thrust…

A: Write the given values with the suitable variables. m=10731 kga=2.230 m/s2 Here, m is the mass and a…

Q: The sign at Newton’s Deli has a mass of 45.1 kg. It is supported by a boom. The angle between the…

A: A. Tension on the support cable is, TsinA=mgT=mgsinA=45.1 kg9.8 m/s2sin31o=858.15 N≈858 N

Q: A sign is hanging as shown. If m = 9.7 kg, 0, = 75°, and 02 = 35°, then find the tension in each of…

A:

Q: Table R(Q) im(A) 100 0.030 200 0.005 330 0.006 100 0.019 200 0.005 3. Using Kirchhoff's Rules,…

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Q: 02018 Pearson Education, Inc. Which of the following is NOT TRUE about the statics of the system?…

A:

Q: 2. Determine the force exerted by the floor on you. c. 4371.72 N а. 4271.72 N b. 4171.72 N d.…

A: Comment: Since we only answer up to  1 question, we’ll answer the 1st question only. Please resubmit…

Q: The system shown in figure is in equilibrium. If the static coefficient of friction between the…

A: For the equilibrium of block ∑Fx=0∑Fy=0

Q: A girl has a mass of 55 kg. Using g = 9.8 Nkg-, calculate her weight. КА) 5.6 N (В) 45.2 N (C) 64.8…

A: m= 55kg g= 9.8 N/kg weight= W

Q: For the given figure, the unknown mass. m, should be slug to maintain the bar in a horizontal…

A: Here we can balance torque about wedge So ,L1/l2=M1/m2 M=12×2.5/7.5=4 So option-C 4.75is correct…

Q: The 300-lb force is to be resolved into the comp salong lines a-a' and b-b'. . Determine the angle a…

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Q: A rectangular plate is supported by three cables as shown. Knowing that the weight of the plate is…

A:

Q: What is the normal force on the mass M = 7 kg in the figure if F = 60 N and the angle %3D D= 30°? F…

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Q: What is the normal force on the mass M = 7 kg in the figure if F = 60 N and the angle e= 30°? Select…

A:

Q: Determine the value of Rb. a. 78.5 lb b.578 lb c. 785 lb d. 875 lb

A: Given that to find Rb.

Q: a) b) C) d) e) 6,90 4,75 Locate the centroid y for composite body shown in the figure. 7,25 6,1 5,25…

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Q: Determine the tension in Cable OC. b 6280 lb d 195 lb a 1910 lb c 6.06 lb

A: Given that: The position coordinate of point O (0,0,0) Position coordinate of C (-3,-4,12) ft

Q: 1. Based on the values provided, complete the following table.

A: Required : Change in potential energy.

Q: Three particles are along the x-axis. 2 cm 2 cm 92 93 9,- 4, - 5 nC and q, - -5 nC. Calculate the a.…

A:

Q: A block weighing 200N is supported by three as shown. Find tension T2. 60° T2 T3 w Select one: а.…

A: weight of block = 200 N

Q: A. If F = 20 N, F = 40 N, F. = 100 N, ande = 70 degrees Whatis the net force along the y-axis? A.…

A:

Q: The 30-kg pipe is supported at A by a system of five cords. Determine the force in the cable AB for…

A: M = 30 kg

Q: • The force systems shown consists of the couple C and four forces. If the resultant of the system…

A:

Q: Figure Q3b shows a cross-section of a solid beam. Calculate the centroid for the beam section giving…

A:

Q: quart of water weighs 7.1 lb.  Determine its mass(kg) Choices are: A. 32.3 B. 1.23 C. 3.33 D. 3.23

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Q: A stick of 111.6 ft long is leaning against a vertical wall If the bottom of the stick slides aw…

A:

Q: 7. Figure A shows a weight-and-rope system held in equilibrium be means of two fixed and…

A:

Q: 6. In the given balance scale of kilograms below, find the following; a. The value of A. * 1000 DE…

A: The value of A.

Q: A 1.9 N was applied to a 6.5 kg block, find the normal force if the angle 0 = 2.7 degrees. %3D

A: The forces acting vertically over the block are, normal force, vertical component of applied force,…

Q: A 161.0-N bird feeder is supported by three cables as shown in the figure below. Find the tension in…

A: The free body diagram is shown below.