Engineering analysis

1. A 50-W, 120-V bulb is connected in parallel with a 15-W, 120-V bulb. What is

1. A 50-W, 120-V bulb is connected in parallel with a 15-W, 120-V bulb. What is the net resistance? Rnet = ______________ 2. What would the current I1 be in (Figure 1) if the 12-?…

1. A 50-cm-long spring is suspended from the ceiling. A 390g mass is connected t

1. A 50-cm-long spring is suspended from the ceiling. A 390g mass is connected to the end and held at rest with the spring unstretched. The mass is released and falls, stretching …

1. A 50.0kg object is pushed by you on a level table.The acceleration is 1.00m/s

1. A 50.0kg object is pushed by you on a level table.The acceleration is 1.00m/s2. The opposing frictional force on the object is 200N. What force must you apply to accelerate the…

1. A 500 kg block ispulled across the floor by a rope attached to the block. The

1. A 500 kg block ispulled across the floor by a rope attached to the block. Theforce on the rope pulling the block is 600 N with the rope makingan angle of 37 degrees above the h…

1. A 500g block on a frictionless horizontal surface isattached to a spring with

1. A 500g block on a frictionless horizontal surface isattached to a spring with spring constant of 12.5N/m. The block ispulled to x = - 20cm and released at t = 0. a. What is the…

1. A 56-kg trampoline artist jumps upward from the top of a platform with a vert

1. A 56-kg trampoline artist jumps upward from the top of a platform with a vertical speed of 5 m/s . Part A How fast is he going as he lands on the trampoline, 2 m below? Express…

1. A 56-kg trampoline artist jumps upward from the top of a platform with a vert

1. A 56-kg trampoline artist jumps upward from the top of a platform with a vertical speed of 5 m/s . Part A How fast is he going as he lands on the trampoline, 2 m below? Express…

1. A 56.1-kg student is entering an elevator on the 2nd floor of the library and

1. A 56.1-kg student is entering an elevator on the 2nd floor of the library and steps on a bathroom scale that happens to be there. The student pushes the button to the 5th floor…

1. A 56.1-kg student is entering an elevator on the 2nd floor of the library and

1. A 56.1-kg student is entering an elevator on the 2nd floor of the library and steps on a bathroom scale that happens to be there. The student pushes the button to the 5th floor…

1. A 57 kg boy and a 40 kg girl use an elastic rope while engaged in a tug-of-wa

1. A 57 kg boy and a 40 kg girl use an elastic rope while engaged in a tug-of-war on a frictionless icy surface. If the acceleration of the girl toward the boy is 2.3 m/s2, determ…

1. A 575 kg meteorite is traveling at 90.0 m/s vertically down when it is 850 km

1. A 575 kg meteorite is traveling at 90.0 m/s vertically down when it is 850 km above the Earth. It strikes a bed of sand and digs a crater that is 3.25 m deep in the sand. a. Ho…

1. A 58 g steel ball is released from rest and falls vertically onto a steel pla

1. A 58 g steel ball is released from rest and falls vertically onto a steel plate. The ball strikes the plate and is in contact with it for 0.5 ms. The ball rebounds elastically,…

1. A 58.0-?F capacitor is connected to a generator operating at a low frequency.

1.A 58.0-?F capacitor is connected to a generator operating at a low frequency. The rms voltage of the generator is 5.50 V and is constant. A fuse in series with the capacitor has…

1. A 5g bug is sitting on the edge of a horizontal disk. The disk has a mass of

1. A 5g bug is sitting on the edge of a horizontal disk. The disk has a mass of 10kg and a diameter of .5m. Together, the bug and disk are rotating at 100rpm. a. What is the total…

1. A 5mW laser puts out a narrow beam of 2mm indiameter. What are the average va

1. A 5mW laser puts out a narrow beam of 2mm indiameter. What are the average values of the B and E in thebeam? 2. Fill in response:    a.   Electromagnetic waves travelat the spe…

1. A 6.5-cm by 2.3-cm parallel plate capacitor has the plates separated by a dis

1. A 6.5-cm by 2.3-cm parallel plate capacitor has the plates separated by a distance of 2.1 mm. (a) When 4.0 10-11 C of charge is placed on this capacitor, what is the electric f…

1. A 60 kg Olympic diver climbs up to a diving platform 8 meters above a swimmin

1. A 60 kg Olympic diver climbs up to a diving platform 8 meters above a swimming pool. (a) How much gravitational energy did she gain by climbing up to the platform (in Joules)? …

1. A 61.0 g tennis ball with an initial speed of 35.0 m/s hits a wall and reboun

1. A 61.0 g tennis ball with an initial speed of 35.0 m/s hits a wall and rebounds with the same speed. The figure below shows the force of the wall on the ball during the collisi…

1. A 65-kg ice skater stands facing a wall with his arms bent and then pushes aw

1. A 65-kg ice skater stands facing a wall with his arms bent and then pushes away from the wall by straightening his arms. At the instant at which his fingers lose contact with t…

1. A 65-kg ice skater stands facing a wall with his arms bent and then pushes aw

1. A 65-kg ice skater stands facing a wall with his arms bent and then pushes away from the wall by straightening his arms. At the instant at which his fingers lose contact with t…

1. A 65.0 kg person stands on a scale in an elevator. (a) What does the scale re

1. A 65.0 kg person stands on a scale in an elevator. (a) What does the scale read (in kg) when the elevator is at rest? kg (b) What does it read when the elevator is climbing at …

1. A 670 kg meteorite happens to be composed of aluminum. When it is far from ea

1. A 670 kg meteorite happens to be composed of aluminum. When it is far from earth, its temperature is -15 degrees Celsius and it moves with a speed of 14 km/s relative to the ea…

1. A 69.0-kg ice skater is moving at 4.10 m/s when she grabs the loose end of a

1. A 69.0-kg ice skater is moving at 4.10 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. She then moves in a circle of radius 0.860 m aro…

1. A 7.00 kg bowling ball collides head-on with a 2.00 kg bowling pin. The pin f

                    1. A 7.00 kg bowling ball collides head-on with a 2.00 kg bowling pin. The pin flies forward with a speed of 3.07 m/s. If the ball continues forward with a    …

1. A 7.73 nC charge is located 1.87 m from a 3.86 nC point charge. Find the magn

1. A 7.73 nC charge is located 1.87 m from a 3.86 nC point charge. Find the magnitude of the electrostatic force in one charge exertson the other. Is the force attractive or repul…

1. A 70-W green laser (lambda = 514 nm) shines uniformly in all directions. a. (

1. A 70-W green laser (lambda = 514 nm) shines uniformly in all directions. a. (2 pts) What is the energy of the photons emitted by this laser [in eV]? b. (3 pts) How many photons…

1. A 73.0-kg crate is given a push so that it is initially moving at a speed of

1. A 73.0-kg crate is given a push so that it is initially moving at a speed of 4.30 m/s across the horizontal floor. The coefficient of friction between the crate and the floor i…

1. A 75 kg bobsled is pushed along a horizontal surface by two athletes. After 4

1. A 75 kg bobsled is pushed along a horizontal surface by two athletes. After 4.5 m from rest, the bobsled has a speed of 6.0 m/s. How much force did the two athletes push with? …

1. A 75 kg child riding a Ferriswheel (radius = 9.0 m) travels in a vertical cir

1.      A 75 kg child riding a Ferriswheel (radius = 9.0 m) travels in a vertical circle. The      wheel completes one revolutionevery 12 s. a.       A.What is the apparent weight…

1. A 75 kg secret spy skis down a friction-less hill that is 5 m high. At the bo

1. A 75 kg secret spy skis down a friction-less hill that is 5 m high. At the bottom it levels out and he grabs a 25 kg bag of secret ”stuff”. The spy then skis off a 2 m high led…

1. A 75 kg secret spy skis down a friction-less hill that is 5 m high. At the bo

1. A 75 kg secret spy skis down a friction-less hill that is 5 m high. At the bottom it levels out and he grabs a 25 kg bag of secret ”stuff”. The spy then skis off a 2 m high led…

1. A 75.0kN spaceship comes in for a vertical landing. From an initial speed of

1. A 75.0kN spaceship comes in for a vertical landing. From an initial speed of 1.00 km/s, it comes to rest in 2.30min with uniform acceleration 2. At a construction site, a 29.0k…

1. A 77 kg athlete is sprinting at 9.3 m/s. During ground contact of one stride

1. A 77 kg athlete is sprinting at 9.3 m/s. During ground contact of one stride the athlete’s Achilles tendon stretches 9 mm. How much strain energy is stored in the tendon if it …

1. A 77 kg athlete is sprinting at 9.3 m/s. During ground contact of one stride

1. A 77 kg athlete is sprinting at 9.3 m/s. During ground contact of one stride the athlete's Achilles tendon stretches 9 mm. How much strain energy is stored in the tendon if it …

1. A 8.00-kg object is hung from the bottom end of a vertical spring fastened to

1. A 8.00-kg object is hung from the bottom end of a vertical spring fastened to an overhead beam. The object is set into vertical oscillations having a period of 1.80 s. Find the…

1. A 8.08-nC charge is located 1.92 m from a 3.90-nC point charge.(a) Find the m

1. A 8.08-nC charge is located 1.92 m from a 3.90-nC point charge.(a) Find the magnitude of the electrostatic force that one charge exerts on the other. N (b) Is the force attract…

1. A 8.6 µF capacitor is charged by a 9.00 V battery through a resistance R . Th

1. A 8.6 µF capacitor is charged by a 9.00 V battery through a resistance R. The capacitor reaches a potential difference of 4.20 V at a time 3.09 s after charging begins. Find R.…

1. A 85.0-kg speed skier has finished a long down hill race and reaches a final

1. A 85.0-kg speed skier has finished a long down hill race and reaches a final slope (fig. 1 below) designed to slow her down. At the bottom of this slope her speed is 29.0 m/s. …

1. A 870 N crate rests on the floor. (a) How much work is required to move it at

1. A 870 N crate rests on the floor. (a) How much work is required to move it at constant speed 6.7 m along the floor against a friction force of 180 N? J (b) How much work is req…

1. A 90Kg man is walking up a 45° inclined wooden ramp dragging a 100 KG, 2x2x2

1.      A 90Kg man is walking up a 45° inclined wooden ramp dragging a 100 KG, 2x2x2 meter cubic wooden crate, behind him by means of a rope slung over his shoulder. The rope is a…

1. A Ball is thrown upward at an angle 90 degree to the ground. At the top of th

1. A Ball is thrown upward at an angle 90 degree to the ground. At the top of the motion, which quantities are zero? a. acceleration b. displacement c. velocity d. force e. none o…

1. A Boeing 747 airplane is flying at the elevation of 2,000 km with the constan

1. A Boeing 747 airplane is flying at the elevation of 2,000 km with the constant speed of 250 m/s in the horizontal direction at 200 km away from the Baton Rouge airport (BTR). T…

1. A COMPACT CAR HAS A MASS OF 950 KG AND AN OVERALL EFFICIENCY OF 23.0% (THAT I

1. A COMPACT CAR HAS A MASS OF 950 KG AND AN OVERALL EFFICIENCY OF 23.0% (THAT IS IT CONVERTS 23.0% OF CHEMICAL ENERGY STORED IN THE GASOLINE INTO WORK DONE BY THE DRIVE TIRES PUS…

1. A COMPACT CAR HAS A MASS OF 950 KG AND AN OVERALL EFFICIENCY OF 23.0% (THAT I

1. A COMPACT CAR HAS A MASS OF 950 KG AND AN OVERALL EFFICIENCY OF 23.0% (THAT IS IT CONVERTS 23.0% OF CHEMICAL ENERGY STORED IN THE GASOLINE INTO WORK DONE BY THE DRIVE TIRES PUS…

1. A Carnot heat engine operates between a heat source at 1200K and the environm

1. A Carnot heat engine operates between a heat source at 1200K and the environment at 300 K. The net work produced by the engine is used to power a Carnot refrigerator which remo…

1. A Carnot refrigerator transfers heat from its inside (5.46 oC) to the room ai

1. A Carnot refrigerator transfers heat from its inside (5.46 oC) to the room air outside (23.2 oC). (a) Find the coefficient of performance of the refrigerator. (b) Determine the…

1. A Diesel cycle operates with a compression ratio of 15, and a cutoff ratio of

1.   A Diesel cycle operates with a compression ratio of 15, and a cutoff ratio of 2.5. What is the rate of heat input required for this cycle to produce 223.8 kJ/s? (for air use:…

1. A Ferrari sports car can accelerate at 18 m/s la) is this acceleration greate

1. A Ferrari sports car can accelerate at 18 m/s la) is this acceleration greater than, less than, on equal to 18 for Explain (b) Determine the acceleration of a Porsche in fu.d D…

1. A Nd:YAG laser (wavelength of 532 nm) shines through a single slit >of unknow

1. A Nd:YAG laser (wavelength of 532 nm) shines through a single slit >of unknown width D onto a screen 2.00 m away from the slit. The >distance on the screen between the m …

1. A PAM system is used to multiplex 5 channels, each of which has a baseband ba

1. A PAM system is used to multiplex 5 channels, each of which has a baseband bandwidth of 2 kHz. assuming the minimum theoretical sampling rate , and ignoring sync pulses, determ…