Marie1969 Marie1969

26-02-2021
Physics

contestada

How much work has John accomplished by lifting a 2 kg object 4 m?

A 78.4j
B 9.8
C 19.6j
D 39.2j

Respuesta :

Аноним Аноним

26-02-2021

Answer:

Weight= 2kg Height= 4m G= 9.8

We know work done = W= FD

W= (mg)(D)

W= (2*9.8)(4)

W=78.4 joules or 78.4 j

Answer Link

Otras preguntas

What is the equation of the line that passes through the point (6,3) and has a slope of -1/3?

What is the equation of the line that passes through the point (-7, 2) and has a slope of -1

Which of the following fractions converts to a repeating decimal? a. 7/8 b. 3/5 c. 5/2 d. 2/9

a. 36 mins 52.5 secs b. 24mins 22.5 secs c. 13 mins 0 secs d. 9 mins 45 secs

THE PRESENT AGE OF A FATHER IS THREE TIMES THAN THAT OF HIS SON. FIVE YEARS AGO HE WAS FIVE TIMES AS OLD AS HIS SON. FIND THEIR PRESENT AGES.(STEP BY STEP PLZ)

cany European settlers. 3. Read these sentences from the text. The consequences of European arrival to North America negatively affected the relationships even

which branch science consist of?

Je passe un semestre de mes études en échange à Nice. J'_ (almer) beaucoup la ville et mon lycée. Mes professeurs (être) très sympas. Je (parler) français avec

Given the translation (x,y)⟶(x+3,y−7) What is the image of G (5, -3) ? Group of answer choices A. G' (-6, -2) B. G' (0, -2) C. G' (3, -10) D. G' (8, -4) E. G' (

Please help! What would the equation be? (Answer and Explanation please)