A company manufactures two types of electric hedge trimmers, one of which is cordless. The cord-type trimmer requires 2 hours to make, and the cordless model requires 4 hours. The company has only 800 work hours to use in manufacturing each day, and the packaging department can package only 300 trimmers per day. If the company profits are $36.50 for...
QUESTION 2 The Box Ltd sells electric scooters and provides a one-year warranty (mentioned in the contract) for all its products from the time of purchase by offering to repair or replace the item. Based on past experience, it is probable that there will be some claims under the warranties. A present obligation: Does not arise until there is a...
8. Describe quantitatively the change of the electric field when going from one side to another side of an infinitely large conducting surface with the surface density o. 9. What is the physical meaning of Kirchhoff's rules? 10. Draw a plot of the electric potential of a uniformly charged (non-conducting) solid ball of radius R as a function of distance...
A cube sits in an electric field by E (2i+3j-2 k). One corner of a cube is at the origin with the opposite corner located at (1, 1. 1) m. What is the net (lux through the cube in c. 0 e. None of these
14. Consider the Hamiltonian describing a one-dimensional oscillator in an external electric field + mo???(1) - Ex(1) Calculate the equation of motion for the operators p(t) and x(i) using (6-67) and the commutation relation [p(), x(0)= Show that the equation of motion is just the classical equation of motion. Solve for p(t) and X(t) in terms of p(O) and x(0)...
An electric utility is planning its annual project of shutting down one of its steam boilers for maintenance and repair, an analysis of this project has identified the following principal activities and their expected times and relationships. Activity Time: (Days): Immediate: Predecessor A: 4: -- B: 3: -- C: 4: -- D: 6: A E: 3: A F: 5: C...
Electric current passed through two coulometers connected in series.The first one contained a solution of a metal-nitrate, the second one a solution of H2SO4. After some time 0,675 g of the unknown metal could be found on a Pt electrode of the first coulometer and 73,1 cm3 of hydrogen (16°C, 770 Torr) were created on the Pt electrode of the...
General Electric (GE), one of the world’s largest industrial companies with products ranging from turbines to jet engines to medical equipment, has been transitioning to a much more technology-centric business strategy and business model. Jeffrey Immelt, GE’s CEO from 2000 to 2017, wanted to turn GE into a top 10 software company by 2020. In 2015 GE set up GE...
33. A light bulb emits light uniformly in all directions. If the peak electric field of this light is 16 N/C at a distance of 1.35 m from the bulb, (a) what is the average power radiated by the bulb? (b) What is the peak magnetic field B at that distance?
A cylinder of radius b has a cylindrical hole of radius a (a
< b). The axis of the hole is parallel to the axis of the
cylinder and their distance is d (Fig. 1). The electric current I
flows through the cylinder. What is the magnetic field on the axis
of the hole?
ble 03 Figure 1