Monie11 Monie11

18-04-2016
Physics

contestada

The power expended when a 10 N barbell is raised 2. 0 m in 2s is

Respuesta :

18-04-2016

Work done = (force) x (distance)
   = (10 N) x (2 m) = 20 joules .

Power = (work done) / (time to do the work)
   =       (20 J) / (2 sec)
   = 10 joules/sec = 10 watts .

Answer Link

Otras preguntas

Why are cubes and spheres are called solid figures?

is plastic a mixture, compound, or an element?

Which fraction is the reciprocal of 3 4/5?

Help?? The world has many different biomes. A biome is an area that can be described by its weather or climate. What type of biome do you live in? Do you live i

HELP : Please correct this introduction for me,I have a writing exam tomorrow about Television ! Correct for me : mechanics,structure,grammar mistakes,spelling.

Which tenet do Muslims, Jews, and Christians hold in common? They worship a single supreme god. Believers must pray five times a day. They honor dietary restric

did Jamestown create a strong economy

Which word best describes the mood in this line? I don’t understand if I should be mad at Riley for deceiving me or myself for putting too much faith in a stran

decrease 380 by 18 percent

ashley decorates cakes and uses red icing to write a message on the cakes.She uses 10 1.2-ounces of red icing to write a message on 3 1.2 cakes.Based on this ra