User Account

All Pages

What is the internal resistance r of the battery

Assignment Help Physics
Reference no: EM13957370

1. A battery with 12-V emf has a terminal voltage of 11.4 V. When it delivers a delivers a current of 20 A to the starter of a car. What is the internal resistance r of the battery?

A) how much emf is delivered but the battery above when it delivers a current of 20 A? (b) how much of this power is delivered to the starter? (c) by how much does the chemical energy of the battery decrease when it delivers a current of 20 A to the starter for 3 min? (d) how much heat is developed in the battery when it delivers a current of 20 A for 3 min?

Reference no: EM13957370

Questions Cloud

Public health : As the need for public health systems grows and changes throughout the world, an imperative need exists to improve those systems. Because of this, health care services must undergo evaluation in order to find gaps and opportunities for enhancement.
Write dissertations and literature reviews : I have noted some research topics that are advised for the Dissertation and have put the preferred ones in bold. Could you review them and let me know if these are topics you could work on? Also may I ask, would there be a possibility of interacting ..
The acceptancce rate for applications : Two Psychology majors, in 2 different section of Clinical Psychology, were comparing test scores. The follwing gives the students
Unique island continent separated from most land : Then write a 2 page reflection paper describing that article using APA format. Please write the reflection paper as if it were going to be the content for a traveler's website (e.g., Trip Advisor). Be sure to explain why the article provides inf..
What is the internal resistance r of the battery : A battery with 12-V emf has a terminal voltage of 11.4 V. When it delivers a delivers a current of 20 A to the starter of a car. What is the internal resistance r of the battery?
Truman proclamation concerning territorial ocean : To what extent do current conflicts over water territoriality have their roots in Truman's proclamation? Consider, for example, the current territorial disputes between China and Japan in the East China Sea.
Find an expression which serves as a linear approximation : (a) Find an expression which serves as a linear approximation for l at h=1000 m. (b) Give two assumptions you think have been made in deriving the expression above.
Explain and justify the cost estimating techniques used : Establish a total cost baseline for measuring project performance. Explain and justify the cost estimating techniques used.
Assigned feasible potentials : Let G be a directed graph where c_e is the cost of arc e. If the nodes of G can be assigned feasible potentials then G has no negative dicycle.

Reviews

Write a Review

Physics Questions & Answers

  Find the initial angular velocity of the turbine

A wind turbine is initially spinning at a constant angular speed. Determine the initial angular velocity of the turbine

  How long does it take him to cross the river

A river is L = 2.68 km wide. The banks are straight and parallel. The current is 2.6 km/h and is parallel to the banks. A boat has a maximum speed of 8 km/h in still water. The pilot of the boat aims the boat so that he crosses over to the far bank o..

  Many people mistakenly believe that astronauts that orbit

many people mistakenly believe that astronauts that orbit the earth are above gravity. calculate the acceleration due

  Obtain the thickness of the film

An extremely thin film of soapy water (n=1.36) sits on top of a flat glass plate with n=1.11. What is the thickness of the film

  What is the x and y components of the shell

A 1.35 kg object is moving in the x direction at 16.4 m/s. Just 3.61 s later, it is moving at 28.8 m/s at 36.0^circ to the x axis. What is the magnitude of force applied throughout this time.

  Find what is the smallest thickness of a soap film

What is the smallest thickness of a soap film (n=1.33) thatwould appear black if illuminated with 480-nm light? Assume thereis air on both sides of the soap film

  Find magnitude of heat flow between heat reservoir and gas

throughout the process the mechanical device pushing the piston to compress gas is found to expend 4 kJ of energy. What is the magnitude of the heat flow between heat reservoir and the gas and in what direction does the heat flow occur.

  Determine the final temperature of the bat

Four identical masses of mass 600 mg each are placed at the corners of a square whose side lengths are 15.0cm.What is the magnitude of the net gravitational force on one of the masses, because of the other three.

  Find the magnitudes of vector b and vector c

Vector A has a magnitude of 116 units and points 37.0 ° north of west. Vector B points 69.0 ° east of north. Vector C points 17.0 ° west of south. These three vectors add to give a resultant vector that is zero. Using components, find the magnitud..

  How many moles of gas are in the system

The total mass of the gas is 12.48 g. What is molecular mass of the gas? the gas expands so that the cylinder has twice the height. How much work did the gas do assuming the pressure remained constant.

  Calculate the impedance of the circuit

A 16 ohms resistor is in series with an 85-mH inductor and an ac source. Calculate the impedance of the circuit if the source frequency is 75Hz

  What is the true distance between the points

A 30-meter steel tape is correct at a temperature of 20.0(C). The distance between two points, as measured by this tape on a day when the temperature is 5 (C), is 25.970m. What is the true distance between the points?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd