What are the resistances of battery-cable and motor

Assignment Help Physics
Reference no: EM13652254

The starting motor of an automobile is turning too slowly, and the mechanic has to decide whether to replace the motor, the cable, or the 12 V battery. The mechanic turns on the motor and measures 11 V across the battery, 3.2 V across the cable, and a current of 45 A. What are the resistances of (a) the battery, (b) the cable, and (c) the motor?

Reference no: EM13652254

Questions Cloud

What is the speed of the five-car train : Three identical train cars, coupled together, are rolling east at 1.6 m/s . A fourth car traveling east at 4.4 m/s catches up with the three and couples to make a four-car train. A moment later, the train cars hit a fifth car that was at rest on the ..
Right half has no friction because it is coated with oil : A uniform marble rolls down a symmetric bowl, starting from rest at the top of the left side. The top of each side is a distance above the bottom of the bowl. The left half of the bowl is rough enough to cause the marble to roll without slipping, ..
What are the speed and the direction of the resulting : A 16 g ball of clay traveling east at 3.4 m/s collides with a 30 g ball of clay traveling north at 2.0 m/s. What are the speed and the direction of the resulting 46 g ball of clay?
An electron moves through a uniform magnetic field : An electron moves through a uniform magnetic field given by =Bx i +(2.40 Bx) j . At a particular instant, the electron has velocity =(1.92 i +4.61 j ) m/s and the magnetic force acting on it is (3.08 X 10-19 N) k. Find Bx.
What are the resistances of battery-cable and motor : The starting motor of an automobile is turning too slowly, and the mechanic has to decide whether to replace the motor, the cable, or the 12 V battery. The mechanic turns on the motor and measures 11 V across the battery, 3.2 V across the cable, a..
What emf is induced in the coil by the changing current : A long solenoid has n = 410 turns per meter and carries a current given by I = 28.0(1 ? e?1.60t ), where I is in amperes and t is in seconds. Inside the solenoid and coaxial with it is a coil that has a radius of R = 6.00 cm and consists of a tota..
At what speed do a bicycle and its rider : At what speed do a bicycle and its rider, with a combined mass of 98 kg, have the same momentum as a 1350 kg car traveling at 4 m/s?
Taller grass the lawn mower blade slows down : You are mowing your grass with an electric lawn mower. As you move to taller grass the lawn mower blade slows down. What happens to the current and voltage going to the lawn mower when you move from shorter grass to taller grass?
Equation for the velocity of an electromagnetic wave : Consider the equation for the velocity of an electromagnetic wave in a wire on the bottom of page 621. Under what conditions would this velocity be greater than c (the speed of light)?

Reviews

Write a Review

Physics Questions & Answers

  Obtain the angular displacement of the wheel

After 10.7 s, a spinning roulette wheel has slowed down to anangular velocity of 2.25 rad/s. Determine the angular displacement of the wheel

  What is the mass of the first object

An object of mass 250 g is attached to the first object, after which the system oscillates with half the original frequency. What is the mass of the first object

  What is your velocity right after the collision

You are moving due North on your tricycle with a velocity(0,20m/s). You aee a fellow tricyclist moving with relativevelocity 15m/s at an angle of 150 degrees. what is your velocity right after the collision

  Conclude the magnitude and directional angle

Conclude the magnitude and directional angle

  Estimate the magnitude of the induced emf

The magnetic field in the region between the poles of an electromagnet is uniform at any time, but is increasing at the rate of 0.060 T/s. What is the magnitude of the induced emf

  Find youngs modulus for the muscle tissue

A wooden raft has a mass of 65 kg. When empty it floats in water (density 1000 kg/m3) with 41percent of its volume submerged. What mass of sand can be put on the raft without it sinking.

  Calculate the magnitude of the net force on the bicycle

A bicyclist travels in a circle of radius 26.0 m at a constant speed of 9.00 m/s. The bicycle-rider mass is 84.0 kg. Calculate the magnitude of the net force on the bicycle from the road

  Describe the subsequent motion

Consider two blocks A and B, of mass mA and mB, coupled by a spring and resting on a horizontal frinctionless table. Describe the subsequent motion

  What is the average kinetic energy per molecule

A cylinder contains 1.85 mol of helium gas at 18.5°C. Assume that the helium behaves like an ideal gas. What is the average kinetic energy per molecule

  What is the velocity of the image

Assume that light of wavelength 550 nm is being observed. Also suppose that diffraction effects, rather than atmospheric turbulence, limit the resolving power of the telescope. Find the greatest distance that these stars might be from the earth.

  Find what will be the induced emf in the short coil

A 500-turn solenoid, 25 cm long, has a diameter of 2.5 cm. what will be the induced emf in the short coil during this time

  Find the speed of sound in the gas

An unknown gas is introduced into the aforementioned apparatus using the same tuning fork, and the first resonance occurs when the air column is 6.14 cm long. Find the speed of sound in the gas. m/s

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!

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