Physics 2
A standard D cell battery can supply 25 mA at 1.5 V for about 300 hours, and its internal resistance is about 1 Ω. A lift is powered by a battery such that it is 50% efficient and is being used to lift a 60-kg object that is initially on the ground. When the winch is set to a very slow speed, the load resistance is much greater than the internal resistance of the battery. The greatest speed of the lift is limited by the maximum power supplied by the battery. How high can the object be lifted before the battery uses all of its energy? What are the maximum speed of the object while being lifted and and the minimum time required for the lift? Assume the battery capacity (product of current and time) is independent of the discharge rate (which is not true for real batteries)
good explanations on each step, thanks!
Physics 2 A standard D cell battery can supply 25 mA at 1.5 V for about...
Hi! I’m wondering if anyone can help with these physics
problems from my exam krackers book? I am studying for the mcat and
the explanations in the book and student doctor are not helping me.
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A. 2A B. 3 A C. 6A D. 12 A after the circuit has been on a long time? 12 V 2Ω 2Ω A. 1.2 x 10s C B. 2.5 x 106 C C. 6.0 x 10 C D. 1.7×10-7 C ERhal...
Using supply analysis, explain how is supply applied in the article below about Tesla.? Thank you so much for your help. Factors Affecting Supply (Tesla) The Cost of Production and Cutting Off Unprofitable Vehicle Models In January of 2019, Tesla cut 7% of its workforce to ramp up production of its Model 3 sedans, reducing the price of its products and boosting margins. At the same time, the company discontinued the cheapest versions of its Model S sedans and Model...
Chose the correct answer(s) from the multiple choice lists below 1. Exergy of a system is a) b) always increasing e) guided by the first and second laws of thermodynamics for reversible processes only Un d) limited by the second law of thermodynamics for all processes. processes, it is destroyed partly or completely). e) equal to the Gibs free energy of the system. 211two electrodes, one made of u (E.-3.06 V) and another made of Cu ΟΕ.+034V placed in an...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
Chapter overview 1. Reasons for international trade Resources reasons Economic reasons Other reasons 2. Difference between international trade and domestic trade More complex context More difficult and risky Higher management skills required 3. Basic concept s relating to international trade Visible trade & invisible trade Favorable trade & unfavorable trade General trade system & special trade system Volume of international trade & quantum of international trade Commodity composition of international trade Geographical composition of international trade Degree / ratio of...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...