subject

Physics, 06.07.2019 07:00 kaitttt

The position-time equation for a certain train is xf=2.8m+(8.1m/s)t+(2.9m/s^2)t^2. what is the initial velocity of this train? what is its acceleration?

ansver

Answers: 1

Show answers

Another question on Physics

question

Physics, 21.06.2019 17:20

Which of the following quantities are units of momentum? (there could be more than one correct choice.) a)n m b) kg s/m c) kg m/'s d)n-s 12 points] e) kg m2/s2

Answers: 2

question

Physics, 21.06.2019 23:20

Imagine you had to physically add electrons, one at a time, to a previously neutral conductor. you add one electron very easily, but the second electron requires more work. in your initial post to the discussion, explain why this is. also, what happens to the work needed to add the third, fourth, fifth, and subsequent electrons

Answers: 1

question

Physics, 22.06.2019 10:20

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?

Answers: 1

question

Physics, 22.06.2019 11:40

Consider the following position function. find (a) the velocity and the speed of the object and (b) the acceleration of the object. bold r left parenthesis t right parenthesisr(t)equals=left angle 6 t superscript 4 baseline comma 2 t cubed right angle6t4,2t3 for tgreater than or equals≥0

Answers: 3

You know the right answer?

The position-time equation for a certain train is xf=2.8m+(8.1m/s)t+(2.9m/s^2)t^2. what is the initi...

Questions

question

Business, 15.11.2019 05:31

Acompany's pretax cost of debt: a. is based on the current yield to maturity of the company's outstanding bonds. b. is equal to t...

question

Chemistry, 15.11.2019 05:31

Ahydrated form of copper(ii) sulfate, cuso4·nh2o(s), is heated to drive off all the waters of hydration. if we start with 9.40 grams of hydrated salt...

question

Business, 15.11.2019 05:31

Acomputer company has $3,000,000 in research and development costs. before accounting for these costs, the net income of the company is $2,400,000. wh...

question

Business, 15.11.2019 05:31

The partnership agreement of jones, king, and lane provides for the annual allocation of the business's profit or loss in the following sequence: jon...

question

Business, 15.11.2019 05:31

Which of the following represents an aggressive approach to demand management in the service sector when demand and capacity are not particularly well...

question

Business, 15.11.2019 05:31

Acorporation issues $100,000, 8%, 5-year bonds on january 1, 2007, for $104,200. interest is paid annually on january 1. if the corporation uses the s...

question

Engineering, 15.11.2019 05:31

Alocal zoo wants to keep track of how many pounds of food each of its three monkeys eats each day during a typical week. write a program that stores t...

question

Mathematics, 15.11.2019 05:31

Half of a number is more than or equal to ten...

question

Social Studies, 15.11.2019 05:31

Jonas and greg both live with their respective romantic partners. jonas spends four hours per week with his son. greg spends ten hours per week with h...

question

Physics, 15.11.2019 05:31

When a man returns to his well-sealed house on a summer day, he finds that the house is at 35°c. he turns on the air conditioner, which cools the enti...

question

Computers and Technology, 15.11.2019 05:31

Given a line of text as input, output the number of characters excluding spaces, periods, or commas. ex: if the input is: a) listen,

question

Computers and Technology, 15.11.2019 05:31

The recycle bin exists as a metaphor for throwing files away, but it also allows a user to retrieve and restore files. once the file is moved to the r...

question

Business, 15.11.2019 05:31

Acompany wishes to raise $27 million by issuing 15-year semi-annual coupon bonds with face value of $1,000 and coupon rate of 6.60 percent. the bonds...

question

Business, 15.11.2019 05:31

Aproperty is purchased for $200,000 with an 80 percent ltv. after five years, the owner's equity is $80,000. what would be the approximate annual expe...

question

Physics, 15.11.2019 05:31

Adisk rotates at constant angular acceleration, from angular position θ1 = 16.0 rad to angular position θ2 = 76.0 rad in 5.30 s. its angular velocity...

question

Mathematics, 15.11.2019 05:31

Acomputer products store stocks color laser printers, and the daily demand is normally distributed with a mean of 7.9 printers. the lead time to recei...

question

English, 15.11.2019 05:31

Ariddle: this forgotten code connects time and space: a numeral link to the old abandoned warehouse...

question

Mathematics, 15.11.2019 05:31

Anew one year membership at recplex costs $160. a registration fee of $28 is paid up front, and the rest is paid monthly. how much do new members pay...

question

Health, 15.11.2019 05:31

A6-year-old boy has a moon-faced, stocky appearance but with thin arms and legs. his cheeks are unusually ruddy. he is diagnosed with cushing syndrome...

question

Mathematics, 15.11.2019 05:31

Steven spent $13 each day on monday and tuesday. he spent $9 each day on wensday and thursday. if steven brought $56 to spend, how much did he have le...

More questions: Physics Another questions

Questions on the website: 13722363