What is the average current supplied to the cars motor

Assignment Help Physics
Reference no: EM13980735

A 0.836-kg toy car is powered by one 9V battery (900 V) connected directly to a small DC motor. The car has an effective energy conversion efficiency of 58.1%, meaning that 58.1% of the electric energy applied to the motor is converted into translational kinetic energy. After 7.88 seconds, the car, which is initially at rest, reaches a speed of 2.35 m/s. What is the average current supplied to the car's motor?

Reference no: EM13980735

Questions Cloud

How this change or enhance your understanding of death : Give an synopsis of what you heard or viewed. How does this change or enhance your understanding or perception of death. How do you relate what you heard or viewed to your own understanding of the topic
What are the monthly payments in the first two years : A mortgage broker is offering a $279,000 33-year mortgage with a teaser rate. In the first two years of the mortgage, the borrower makes monthly payments on only a 5.5 percent APR interest rate. After the second year, the mortgage interest rate charg..
Anticipates interest rates : Jacquie plans to deposit $3500 into her savings account for each of the next 5 years, and then $2000 per year for 5 years after that (all at the year end) she anticipates interest rates to be 6% for the next 3 years and then 9% thereafter. How much w..
What is the present value of these cash flows : Investment X offers to pay you $7,900 per year for 9 years, whereas Investment Y offers to pay you $10,800 per year for 5 years. If the discount rate is 8 percent, what is the present value of these cash flows? If the discount rate is 20 percent, wha..
What is the average current supplied to the cars motor : After 7.88 seconds, the car, which is initially at rest, reaches a speed of 2.35 m/s. What is the average current supplied to the car's motor?
Accumulated in the account if the interest rate applied : A person increases the amount of money he invests $10 per month. He invests $100 on the first month and makes a total 24 payments. How much will be accumulated in the account if the interest rate applied was 6% simple and compounded monthly?
Annual coupon bond with a face value : Consider an five-year, 12 percent annual coupon bond with a face value of $1,000. The bond is trading at a rate of 9 percent. What is the price of the bond? If the rate of interest increases 1 percent, what will be the bond’s new price?
The net profit margin is : You are given the following financial data for Company A: Cash = $6,000; inventories = $1,000; accounts receivable = $700; other current assets = $500; long-term assets = $1,000; accounts payable = $800; other current liabilities = $4000; net income ..
Description of the disease or condition : The infographic should contain the following: A description of the disease or condition. Data on incidence and prevalence presented in graphic form

Reviews

Write a Review

Physics Questions & Answers

  Obtain the magnitude of the frictional force

Review Interactive Solution 4.41 in preparation for this problem. A 90.0-kg baseball player slides into second base. What is the magnitude of the frictional force

  What is the magnification of her image

The Hale Telescope The 200-inch-diameter concave mirror of the Hale telescope on Mount Palomar has a focal length of 16.9, What is the magnification of her image

  Determine the direction of the induced current

A loop of wire in the shape of a rectangle of width 8 cm and length 90 cm and a long, straight wire carrying acurrent I= 5t^1.4-3t^1.8 downward lie on a tabletop; What is the direction of the induced current

  What is cars constant deceleration magnitude before impact

A car traveling 56.4 km/h is 24.7 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.11 s later. (a) What is the car's constant deceleration magnitude before impact? (b) How fast is the car traveling at impact?

  What is the ima of the jack

A child of mass 24 kg sits 2.10m to the left of the center of a seesaw. The mass of the seesaw is 35 kg. How far to the right of the central pivot must a second child of mass 40 kg sit if the seesaw is to be perfectly balanced.

  Find the work required to move a planet satellite

Find the work required to move a planet satellite of mass 1890 kilogram from a circular orbit of radius 2R to one of radius 3R, where 3.95 x 106 meter is the radius of the planet

  Determine the pendulums length

A pendulum makes 24 oscillations in 39s. The period is 1.6 s 1. Find the pendulum's length

  The magnitude of the electric field due to a small dipole

The magnitude of the electric field due to a small dipole is measured to be 250 N/C at a location on the axis of the dipole, 2 cm from the center of the dipole. Approximately what is the magnitude of the electric field due to the dipole at a location..

  Find the density of the material from which penny is made

A penny has a mass of 2.50 g, a diameter of 19.55 mm, find the density of the material from which the penny is made

  Discover the magnitude of the friction force

A grinding wheel of radius 0.350 m rotating on a frictionless axle is brought to rest by applying a constant friction force tangential to its rim. The constant torque produced with this force is 71.5 N · m. Discover the magnitude of the friction forc..

  What pressure does the car exert on the ground

A car tire makes contact with the ground on a rectangular area of 12 cm by 18 cm. The car's mass is 1050 kg. What pressure does the car exert on the ground

  Estimate the magnitude of the impulse applied to golf ball

A golf ball strikes a hard, smooth floor at an angle of ? = 32.4° and, rebounds at the same angle. What is the magnitude of the impulse applied to the golf ball by the floor

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