2) The ballistic pendulum is a simple device to measure projectile speed v by observing the maximum angle to which the box of sand with the embedded projectile swings. Calculate the pre-impact speed of the 40- gram projectile if the 16-kg box of sand swings up to a maximum angle of 0 = 23° after impact. #1 2 m

2) The ballistic pendulum is a simple device to measure projectile speed v by observing the maximum angle to which the box of sand with the embedded projectile swings. Calculate the pre-impact speed of the 40- gram projectile if the 16-kg box of sand swings up to a maximum angle of 0 = 23° after impact. #1 2 m

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Classwork for PHYS220-A-Ali Sabbah-SP2021 Beirut Sec-A Beirut (MW 09:30-10:45) google.com/u/0/w/Mjc5NTQzMDc5NTgz/t/all PHYS220 Spring/20-21 Practice Sheet-1 Keys 1) A0.1 kg object oscillates as a s At a position X,, the object has a kinetic energy of 0.7 J and a potential energy 0.3 J. The amplitude of oscíllation, A, is: (a) 0.12 m (b) 0.22 m aple harmonic motion along the x -axis with a frequency f 3.185 Hz. (c) 0.31 m (d)0.42 m EJE the
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The distance between a flying drone carrying a laser scanner and a building (Figure 4) is 300m. The distance can be calculated using equation below, where, ris the distance, c is the speed of light and At is the time taken from the laser scanner and the object. r = 1 .c. At 2 Given the building size and shape as in Figure 4. Scanning resolution for this scanner is 4000 points in 1 m?. Consider c = 3.00x10® m/s. Calculate the time taken to scan all possible surfaces of the building. 20 m 40 m 1/8 circle Radius = 25m Width = 40 m 50 m 25 m 10 m 15 m 20 m
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1. The wheel starts rotating from rest, 2) if its angular velocity Was a function of angular position 0 is W=0.1-0², where O is in radian, and its radius ris 0.2 m, what is the magnitude of the angular acceleration (in rad/s?) of the wheel after the wheel has turned 1.1 revolution(s) from rest. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. P
rad The rod OA rotates clockwise at a constant angular velocity of 0 = (3) Two pin-connected slider block, located at B, move freely on OA. The curved rod is described by the equation r (300 (3-cos)) m. Hint: 1. Remember clockwise rotation is negative velocity. OA Variable 0₁ d₁ d₂ d3 0₁ d2 d3 Values for the figure are given in the following table. Note the figure may not be to scale. Value 110 degrees 0.45 m 0.1 m 0.275 m Using cylindrical components, a. Determine the cylinders's radial and transverse components of velocity at the instant shown, u, and vg. b. Determine the cylinders's radial and transverse components of acceleration at the instant shown, ar and ag. c. Determine the cylinder's magnitude of the velocity at the instant shown, ·M. d. Determine the cylinder's magnitude of the acceleration at the instant shown, |a1. Round your final answers to 3 significant digits/figures. 7= fr + a= M-C Hr+ m S M 82 He) Fe) m S m
1a) Plot the position in the x-direction as a function of time for both birds on the same co-ordinatesystem (the plots do not have to be exact).b) Write down the equations of motion in x and y directions for bird 1 and 2. c)Using ?⃗ଵ(?) and ?⃗ଶ(?) to represent the position vector of birds 1 and 2, respectively, write downthe components of the position vector for both birds in parenthesis format.d) Write an equation using the tangent of the position vectors that describes when the huntershould release the arrow.e) Solve this equation for the time at which the hunter should release his arrow PLEASE explain, especially 1c, d, and e