What must be the power of the electric motor

Assignment Help Physics

Reference no: EM13512256

A) A lightweight electric car is powered by ten 12-V batteries. At a speed of 70 km/h, the average frictional force is 1050 N. What must be the power of the electric motor if the car is to travel at a speed of 70 km/h?

B) If each battery can deliver a total charge of 180 Ah before recharging, what is the total charge in coulombs that can be delivered by the ten batteries before recharging?

C) What is the total electric energy delivered by the ten batteries before recharging?

D) How far can the car travel at 70 km/h before the batteries must be recharged?

E) What is the cost per kilometer if the cost of recharging the batteries is 9 cents per kilowatt-hour? (Give your answer in cents. Don't give units)

Reference no: EM13512256

Questions Cloud

Statement of cash flows : In the sources section of the statement of changes in financial position, transactions are sub-classified into those affecting liquid assets and those affecting other accounts.

Headings across a piece of paper : Set up the headings across a piece of paper - indicate the effect of each of the transactions on total assets, liabilities, and owner's equity

Calculate the final speed of the spheres center of mass : A sphere of radius r starts from rest and rolls without slipping along a curved surface, Find the final speed v of the sphere's center of mass

Inventory of boating supplies owned by the company : Identify the items that as an asset (A), liability (L), revenue (R), or expense (E) from the firm's viewpoint - the inventory of boating supplies owned by the company

What must be the power of the electric motor : A lightweight electric car is powered by ten 12-V batteries. At a speed of 70 km/h, the average frictional force is 1050 N. What must be the power of the electric motor if the car is to travel at a speed of 70 km/h

Determine the following amounts of stockholders equity : Net income (or net loss) during 2006, assuming that as of December 31, 2006, assets were $425,000, liabilities were $105,000, and there were no dividends and no additional capital stock was issued.

Find the cars translational kinetic energy : A car with a total mass of 1.52 103 kg has wheels of radius 33.5 cm and moment of inertia 0.835 kg · m2. Find the car's translational kinetic energy when the car is moving at a speed of 27.5 m/s

What is there common speed after the collision : A box of mass m, is released from rest and slides down a 3 m high frictionless chute. What is there common speed after the collision

Find the magnitude of initial acceleration of third sphere : Three uniform spheres are located at the corners of an equilateral triangle. Each side of the triangle has a length of 1.19 m. find the magnitude of the initial acceleration of the third sphere

User Account

All Pages