Monie11 Monie11
  • 18-04-2016
  • Physics
contestada

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

Respuesta :

AL2006
AL2006 AL2006
  • 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

Malaysia's two geographical regions are separated by what body of water?
The sum of two consecutive whole numbers is 57. What are the two numbers? Let n represent the first number. Then n+1 is the next consecutive whole number.
what is the least 1/5 0.22 or 19%
What is the square root of .8711
Between which pair of numbers is the exact product of 379 and 8. Give an example how to solve.
a compound mystery.    why is a can of peas an carrots a mixture? what other mixtures can u list
How do you turn a fraction into a decimal and a decimal into a fraction
What is a hypotonic solution?
A muffin recipe calls for 2/5 tablespoons of vanilla extract to make 6 muffins. Arthur is making 18 muffins How much vanilla extract does he need?
Solve each equation.1. 9/2x+18+3x=11/22. (x+6)-(2x=7)-3x=-9