# Yahoo Web Search

1. ### Which of the following is NOT a unit of power?

... by time, and work is equal to force times distance. J = N *m, and N is a measure of force, while m is a measure of distance. Seconds are, of...

1 Answers · Science & Mathematics · 04/03/2012

2. ### Keisha is pushing her sister on a swing. She applies 35 N of force to her sister for 0.6 m. Her sister swings?

work done = force x distance you have the force and distance given, even the answer on multiple choice. 35 x 0.6 = 21 J

1 Answers · Science & Mathematics · 19/04/2011

3. ### A force of 30000 N j is exerted for 4.00 s, on a 95,000 kg mass?

a . Impulse = Ft = 30000(4) = 120000 N -s b. change in momentum = impulse = 120000 N -s c. j = m∆v = (95000)∆v => ∆v = 1.26 m/s d. We do not know the initial velocity.

2 Answers · Science & Mathematics · 31/07/2012

4. ### How far must you stretch a spring with k = 1100 N /m to store 300 J of energy?

Let's pretend we don't know the equation for storing energy in a spring. Let's use some physics to derive it. OK, ...

2 Answers · Science & Mathematics · 27/06/2015

5. ### Which dimensional analysis is correct for the calculation of EMF?

... L^2) / (t^2 Q) If we look at B, we get N = Force = M L/t^2 A = Current = Q/t m = distance = L s = time = t which gives...

4 Answers · Science & Mathematics · 12/05/2013

6. ### A 905 N crate rests on the floor. ( a ) How much work is required to move it at constant speed?

A 905 N crate rests on the floor. ( a ) How much work is required to move it at constant speed 5.5 m along the floor against a friction force of 180 N ? W = Ff*d = 180*5.5 = 990 joule (b) How much work is...

2 Answers · Science & Mathematics · 29/12/2014

7. ### force & velocity q??

( a )60 N *s J is momentum J = F*t J = (6.00 N )(15.0s) J ...

1 Answers · Science & Mathematics · 10/02/2008

8. ### Why is it 3 J of work?

The joule (symbol J ) is a derived unit of energy or work in the International System...

1 Answers · Science & Mathematics · 15/11/2012

9. ### A 6 kg object is subjected to two forces, Farrow1 = 5 N i hat - 14 N j hat and Farrow?

... = √(6^2 + -22^2) = √520 = 22.8035085 N Tan θ = j /i = -22/6 = -3⅔⅔ θ = -74.7448813... equation to determine the acceleration. F = m * a √520 = 6 * a , a = √520 ÷ 6 = 3.80058475 m/s^2...

2 Answers · Science & Mathematics · 01/01/2014

10. ### How much work is required to stretch a spring 0.221 m from equilibrium if its force constant is 9.87 N /m? J ?

work required = potential energy stored by spring =0.5*9.87*(0.221)^2 =0.241030335 joule

1 Answers · Science & Mathematics · 09/04/2007