Engineering analysis

1- A 5-element uniform linear array with inter-element spacing of /2 is to have

1- A 5-element uniform linear array with inter-element spacing of /2 is to have maximum radiation in the direction =60° , find the current phases , find the directions of null rad…

1- A 5.0 µC charge is placed 2 m from a 2.5 µC charge. What is the potential ene

1- A 5.0 µC charge is placed 2 m from a 2.5 µC charge. What is the potential energy of the system? a) 0 .   b) 56 mj . c) 14 mj   . d) 8.2 mj 2- Two point charges +Q are a distanc…

1- A 5.7cm-thick layer of oil ( n =1.46) is sandwiched between a 1.0cm-thick she

1- A 5.7cm-thick layer of oil (n=1.46) is sandwiched between a 1.0cm-thick sheet of glass and a 2.1cm-thick sheet of polystyrene plastic (n=1.59). Part A How long (in ns) does it …

1- A Prius accelerates from 0 to 60 miles per hour in 10.9 seconds. What is the

1- A Prius accelerates from 0 to 60 miles per hour in 10.9 seconds. What is the acceleration of the car during this time? [To save you conversions, I’ll tell you that 60mph is the…

1- A balanced, wye-connected, resistive and capacitive, three-phase circuit has

1- A balanced, wye-connected, resistive and capacitive, three-phase circuit has a phase voltage of 80V and a phase current of 2.5A. Calculate the total apparent power ST in the ci…

1- A beam has the following cross-section: where b = 6 inches, h = 10 inches, an

1- A beam has the following cross-section: where b = 6 inches, h = 10 inches, and t = 1 inches. Determine the moment of inertia. I= in^4? 2- A beam has the following cross-section…

1- A block of mass 3.0 kg lies on a horizontal surface. The cofficient of static

1- A block of mass 3.0 kg lies on a horizontal surface. The cofficient of static friction between the block and the surface is 0.430. By raising one one end of the surface, the an…

1- A bowler rolls the 1st ball and knocks down 9 pins and the rack comes down an

1- A bowler rolls the 1st ball and knocks down 9 pins and the rack comes down and knocks the remaining pin over. The score of 9 is given the bowler and the pin needs to be reset a…

1- A bus makes a trip according to the position-time graph shown in the drawing.

1- A bus makes a trip according to the position-time graph shown in the drawing. What is the average velocity (magnitude and direction) of the bus during each of the segments A, B…

1- A capacitor consists of two closely spaced metal conductors of large area, se

1-A capacitor consists of two closely spaced metal conductors of large area, separated by a thin insulating foil. It has an electrical capacity of 4000.0 ?F and is charged to a po…

1- A car is moving along a street with acceleration of 0500 m/s A 200m-long trai

1- A car is moving along a street with acceleration of 0500 m/s A 200m-long train is movwing at 100 m/s parallel to the street The speed of the car is 170 m/s when it gets the tai…

1- A car is traveling due west at 20.0 m/s. If the acceleration of the car is a

1- A car is traveling due west at 20.0 m/s. If the acceleration of the car is a constant 1.0 m/s2 due west, find the velocity of the car after 3.00 s. 2- On a frictionless horizon…

1- A car traveling 28 m/s is traveling towards a cliff that is 65 m away when it

1- A car traveling 28 m/s is traveling towards a cliff that is 65 m away when it slams on the breaks. How good do the breaks have to be (i.e. what acceleration do they need to pro…

1- A charged object released at point A spontaneously travels to point B. When t

1- A charged object released at point A spontaneously travels to point B. When the object reaches point B is has a non-zero velocity. What can be concluded? 2- For the spherical s…

1- A couple of friends are playing catch by tossing a ball over a house as shown

1- A couple of friends are playing catch by tossing a ball over a house as shown. At the very top of the ball's trajectory, the velocity of the ball is......... a)- Less than the …

1- A cylindrical hoop with a diameter of 58 cm has the same mass as a spherical

1- A cylindrical hoop with a diameter of 58 cm has the same mass as a spherical shell of radius R. If the cylinder and sphere have the same moment of inertia about their centers, …

1- A guitar string is 90.0 cm long and has a mass of 3.02 g . From the bridge to

1- A guitar string is 90.0 cm long and has a mass of 3.02 g . From the bridge to the support post (=) is 60.0 cm and the string is under a tension of 540 N . What are the frequenc…

1- A hydraulic jack for changing car tires is designed with a primary cylinder (

1- A hydraulic jack for changing car tires is designed with a primary cylinder (the one you push down on) 1 cm in diameter and a secondary cylinder (the one that pushes up on the …

1- A man pulling an empty wagon causes it to accelerate at 2 m/s2. What will the

 1- A man pulling an empty wagon causes it to accelerate at 2 m/s2. What will the acceleration be if he pulls with the same force when the wagon contains a child whose mass is 7 t…

1- A mass of an object is 104.81 (in grams). What is its weight in Newtons? (Hin

1- A mass of an object is 104.81 (in grams). What is its weight in Newtons? (Hint: Use three significant digits for the acceleration of gravity) ----------------------------------…

1- A one-meter long wire antenna is center fed by a source with frequency 30 MHz

1- A one-meter long wire antenna is center fed by a source with frequency 30 MHz : i- find the wavelength and the current distribution along the antenna . ii- find the radiation r…

1- A one-meter long wire antenna is center fed by a source with frequency 30 MHz

1- A one-meter long wire antenna is center fed by a source with frequency 30 MHz : i- find the wavelength and the current distribution along the antenna . ii- find the radiation r…

1- A particular gas exerts a pressure of 2.79 bar. What is this pressure in unit

1- A particular gas exerts a pressure of 2.79 bar. What is this pressure in units of pascals? 2- A particular gas exerts a pressure of 3.43 bar. What is this pressure in units of …

1- A pendulum has a period of 2.94 s on Earth. What is itslength? Length of pend

1- A pendulum has a period of 2.94 s on Earth. What is itslength? Length of pendulum in meters? 2- The pendulum of a grandfather clock is 0.676 m long. What isits period on the Mo…

1- A pendulum set up in the stairwell of a 12 story building consists of a heavy

1- A pendulum set up in the stairwell of a 12 story building consists of a heavy weight suspended on a 30.5 m wire. If g = 9.81 m/s2, what is the period of oscillation? ..... s --…

1- A piece of glass has a temperature of 71.1 piece of glass has a temperature o

1- A piece of glass has a temperature of 71.1 piece of glass has a temperature of 71.1degree C. Liquid that has a temperature of 43.0 degree C is poured over the glass, completely…

1- A projectile is fired into the air from the top of a cliff of height h = 210

1- A projectile is fired into the air from the top of a cliff of height h = 210 m above a valley. Its initial velocity is v0 = 59.4 m/s at an angle ? = 61 A projectile is fired in…

1- A projectile is fired into the air from the top of a cliff of height h = 210

1- A projectile is fired into the air from the top of a cliff of height h = 210 m above a valley. Its initial velocity is v0 = 59.4 m/s at an angle ? = 61 A projectile is fired in…

1- A ranger in a national park is driving at 45 km/h when a deer jumps onto the

1- A ranger in a national park is driving at 45 km/h when a deer jumps onto the road 64 m ahead of the vehicle. After a reaction time of t s, the ranger applies the brakes to prod…

1- A rock is thrown directly upward from the edge of the roof of a building that

1- A rock is thrown directly upward from the edge of the roof of a building that is 33 meters tall. The rock misses the building on its way down, and is observed to strike the gro…

1- A rock is tossed straight up with a speed of 15.7 m/s. When it returns, it fa

1- A rock is tossed straight up with a speed of 15.7 m/s. When it returns, it falls into a hole 14.4 m deep. How long is the rock in the air, from the instant it is released until…

1- A rock is tossed straight up with a speed of 15.7 m/s. When it returns, it fa

1- A rock is tossed straight up with a speed of 15.7 m/s. When it returns, it falls into a hole 14.4 m deep. How long is the rock in the air, from the instant it is released until…

1- A runner travels 10 km is 45 minutes. What is the runner\'s average speed in

1- A runner travels 10 km is 45 minutes. What is the runner's average speed in km/hr? 2- There are two cars, Car A’s position can be modeled as xA = 2t2 + 3t + 2 and Car B’s posit…

1- A runner travels 10 km is 45 minutes. What is the runner\'s average speed in

1- A runner travels 10 km is 45 minutes. What is the runner's average speed in km/hr? 2- There are two cars, Car A’s position can be modeled as xA = 2t2 + 3t + 2 and Car B’s posit…

1- A ski tow operates on a slope of angle 14.9 of length 340 m . The rope moves

1- A ski tow operates on a slope of angle 14.9 of length 340 m . The rope moves at a speed of 13.0 km/h and provides power for 48 riders at one time, with an average mass per ride…

1- A ski tow operates on a slope of angle 14.9 of length 340 m . The rope moves

1- A ski tow operates on a slope of angle 14.9 of length 340 m . The rope moves at a speed of 13.0 km/h and provides power for 48 riders at one time, with an average mass per ride…

1- A stick has a linear mass density that varies with location according to the

1- A stick has a linear mass density that varies with location according to the formula lamda= Cx. What is the total mass of the stick if it is 3 meters long?             a- 3C   …

1- A system with a mass of 1923 g has an acceleration of 5.7 [\\frac{m}{s^2}] ms

1- A system with a mass of 1923 g has an acceleration of 5.7 [ rac{m}{s^2}] ms2? Find the expected net force on the system in newtons. 2- The apparent weight of a object is equal …

1- A trampoline artist of mass 66 kg jumps vertically upwards from the top of a

1- A trampoline artist of mass 66 kg jumps vertically upwards from the top of a platform. When he reaches the trampoline, 3 m below, he is travelling with a speed of 9.5 m s-1. If…

1- A tuning peg slips on your violin, lessening the tension in one of the string

1-A tuning peg slips on your violin, lessening the tension in one of the strings. What effect does this change have on the string's sound? a-It lowers the pitch (vibrational frequ…

1- A two-element array made of two /2 side by side dipoles with spacing equal to

1- A two-element array made of two /2 side by side dipoles with spacing equal to .125 , the two elements are fed by currents equal in magnitude but having a phase difference such …

1- A two-element array made of two /2 side by side dipoles with spacing equal to

1- A two-element array made of two /2 side by side dipoles with spacing equal to .125 , the two elements are fed by currents equal in magnitude but having a phase difference such …

1- A uniform electric field of magnitude E = 250 N/C makes an angle ? = 45.0o wi

1- A uniform electric field of magnitude E = 250 N/C makes an angle ? = 45.0o with the normal to the surface and the surface area is 5.50 x 104 cm2. Find the electric flux through…

1- A weight lifter lifts a 390-N set of weights from ground level to a position

1- A weight lifter lifts a 390-N set of weights from ground level to a position over his head, a vertical distance of 1.65 m. How much work does the weight lifter do, assuming he …

1- A wheel of diameter of 49 cm slows down uniformly from 36 m/sto rest over a d

1- A wheel of diameter of 49 cm slows down uniformly from 36 m/sto rest over a distance of 95 m. What is the total number ofrevolutions the wheel rotates in coming to rest? Number…

1- A- Instructions for finding a buried treasure include the following: Go 448.6

1- A- Instructions for finding a buried treasure include the following: Go 448.6 paces at 120 , turn to 156 and walk 254 paces, then travel 491 paces at 232 . Find the magnitude o…

1- Abrasive wear is most common in situations in which: a. Hard particles are ca

1- Abrasive wear is most common in situations in which: a. Hard particles are caught between two contact surfaces b. the hardness of one material is much higher than the other c. …

1- Abrasive wear is most common in situations in which: a. Hard particles are ca

1- Abrasive wear is most common in situations in which: a. Hard particles are caught between two contact surfaces b. the hardness of one material is much higher than the other c. …

1- An electric fan is turned off, and its angular velocity decreases uniformly f

1-An electric fan is turned off, and its angular velocity decreases uniformly from 450 rev/min to 160rev/min in a time interval of length 3.80s . A-Find the angular acceleration i…

1- An ideal Voltmeter is connected across the terminals of a 12 Volt battery and

1- An ideal Voltmeter is connected across the terminals of a 12 Volt battery and a light bulb with R = 4.5 ohms is also connected across the battery terminals. The Voltmeter reads…