kennedysmith97 kennedysmith97

22-03-2015
Physics

Answered

A horizontal force of 300.0 N is used to push a 145-kg mass 30.0 m horizontally in 3.00 s.
(A) Calculate the work done on the mass.
(B) Calculate the power developed.

Answer :

22-03-2015

Work = (force) x (distance)

Work = (300 N) x (30 m) = 9,000 joules

Power = (work) / (time)

Power = (9,000 joules) / (3 sec) = 3,000 watts

Oops. I didn't use the mass of the 145-kg object.
Probably because I didn't need it.

Answer Link

Other Questions

Describe the factors that influence the capacity of error to hold water vapor.

Select the correct answer from each drop-down menu.Interpret the given expression:[tex]\[ \frac{(5x-2)^3}{x+11} \][/tex]The [tex]\(\square\)[/tex] of the [tex]\

Basic Math Practice12. [tex]\( 2.67 \times 10 \)[/tex]Express your answer using scientific notation with 2 decimal places.

10. The United States grew by 390,143 square miles in 1845, by 285,680 square miles in 1846, and by 529,017 square miles in 1848. The United States added anothe

> Pyramus and Thisbe A Roman mythPyramus was the handsomest youth, and Thisbe the fairest maiden, in all Babylonia, where they lived. Their parents occupied

Write a polynomial in standard form with the zeros [tex]\(-4, 0, 1, \)[/tex] and [tex]\(4\)[/tex].A. [tex]\(x^4 - x^3 - 8x^2 + 16x\)[/tex]B. [tex]\(x^4 - x^3 -

Which elements can be made in the core of a star after the hydrogen is used as fuel? Select four answers.A. IronB. GoldC. SiliconD. CarbonE. OxygenF. Hydrogen

Her capital north of Duiwelskloof towards Munnik, crowns a hill in thestandingMolotutsi Valley. From the surrounding region you can see itregally above the cyca

which expression is equivalent to 7 /2 x 7/2 x 7/2?

Find the perimeter of the polygon with the vertices [tex]\(G(2,4), H(2,-3), J(-2,-3),\)[/tex] and [tex]\(K(-2,4)\)[/tex].The perimeter is [tex]\(\square\)[/tex]