jlemusdc7 jlemusdc7

04-12-2018
Physics

contestada

Alexander has a mass of 70 kilograms. his apartment is on the second floor. 5 meters yo from ground level . How much work does he do against gravity each time he climbs the stairs to his apartment.

Respuesta :

ballyho126 ballyho126

04-12-2018

potential energy gain = work done by alexander

PE=mass*gravity * height

PE=70kg*9.81*5=3433.5

take g=9.81

answer =3433.5

Answer Link

Otras preguntas

Emily is observing the velocity of a cyclist at different times. After four hours, the velocity of the cyclist is 14 km/h. After nine hours, the velocity of the

What is the equation of the quadratic graph with a focus of (8, −8) and a directrix of y = −6? f(x) = −one fourth (x − 7)2 + 1 f(x) = −one fourth (x − 8)2 f(

How long would it take for 1.50 mol of water at 100.0 ∘c to be converted completely into steam if heat were added at a constant rate of 19.0 j/s ?

How much heat transfer (in kilocalories) is required to thaw a 0.450-kg package of frozen vegetables originally at 0ºc if their heat of fusion is the same as th

Which of the following describes how bacteria can receive or exchange genetic material? (A) In transformation, some bacteria pick up pieces of DNA from the envi

Suppose Sn is defined as 2 + 22 + 23 + . . . + 2n . What is the next step in your proof of Sn = 2(2n - 1), after you verify that Sn is valid for n = 1? A. Show

Potassium forms an oxide containing 1 oxygen atom for every 2 atoms of potassium. what is the coefficient of oxygen in the balanced equation for the reaction of

Why is it important to have a basic understanding of chemistry in order to understand biological processes?

Shamas famous restaurants expects to pay a common stock dividend of $1.50 per share next year (d1). dividends are expected to grow at a 4% rate for the foreseea

Which is an example of an appeal to ethos?

Q&A Education