# Yahoo Web Search

related to SPE

1. Sort by

1. ### the temperature a metal increases by 3k when 1635J is added to a 2kg quantity of the metal what is the the spe?

Q = m * Cp * dT Heat = mass * Specific Heat * Temperature Change 1635J = 2000g * Cp * 3K Cp = 1635/(2000 * 3) 0.2725 J/(g*K) or 272.5 J/(kg*K)

1 Answers · Science & Mathematics · 28/09/2008

2. ### an olympic runner leaps over a hurdle the acceleration of gravity is 9.81 if the runners initial verticle spe?

height=initial velocity times time --1/2gravity times time squared h=2t-4.905t^2 you need to find the time when the velocity is zero 0=v-at t=.204 seconds plug it back in to the first equation h=2(.204)-4.905(.204)^2 h=.204 meters

1 Answers · Science & Mathematics · 04/10/2011

3. ### gravity accelerates objects at about 10m/s^2 downward. If a Spam sandwich is thrown upward with an initial spe?

g = - 10 (It's going down. vi = 20 m/s t = 1 second vf = ???? g = (vf - vi)/t -10 = (vf - 20)/1 -10 = vf - 20 10 = vf This means it is still going up and the speed is 10 m/s up -10 = (vf - vi)/2 -20 = vf - 20 vf = 0 I leave the rest to you...

1 Answers · Science & Mathematics · 29/08/2011

4. ### A 68-kg fisherman in a 120-kg boat throws a package of mass m = 15 kg horizontally toward the right with a spe?

Momentum is conserved; the initial momentum of the system is zero, as is the final momentum: m*V = M*v → v = V*m/M = 4.1*15/188 v = 0.327 m/s

1 Answers · Science & Mathematics · 03/12/2012

5. ### A 3.0 kg block slides along a horizontal surface with a coefficient of friction µk = 0.30. The block has a spe?

Your picture did not open. I am trying to answer your questions as far as possible with the help of your word problem only. 1) Use energy conservation here. Net change in kinetic energy = 0.5 mv^2 [as final speed = 0] = 4.86 J This...

1 Answers · Science & Mathematics · 19/01/2014

6. ### How much work must you do to push a 10 block of steel across a steel table at a steady spe?

that... doesn't seem to be a valid question. First, there's no units, so it's impossible to answer it for that reason alone. Second, if you want units of work, what you need is force and distance, not speed. W = FD And power is Work per unit time so...

1 Answers · Science & Mathematics · 15/01/2009

7. ### The viscous force on an oil drop is measured to be 6.0 10-13 N when the drop is falling through air with a spe?

You need to use terminal velocity ideas. Check this link: http://en.wikipedia.org/wiki/Stokes%27_law Hope this helps. your_guide123@yahoo.com

1 Answers · Science & Mathematics · 18/11/2012

8. ### The greatest force a level road can exert on the tires of a certain 2000kg car is 4 kn what is the highest spe?

Acceleration = (f/m) = 4,000/2,000) = 2m/sec^2. Maximum V = sqrt.(ar) = 20m/sec. (20 x 3.6) = 72kph., should you need that.

1 Answers · Science & Mathematics · 02/02/2014

9. ### A 69-kg fisherman in a 133-kg boat throws a package of mass m = 15 kg horizontally toward the right with a spe?

m1 v1 + m2 v2 = m1 u1 + m2 u2 m1 = 69 + 133 = 202 kg m2 = 15 kg v1 = v2 = 0 u2 - u1 = 4.4 m/s u2 = u1 + 4.4 m1 v1 + m2 v2 = m1 u1 + m2 u2 0 = 202 u1 + 15 (u1 + 4.4) 0 = 202 u1+ 15 u1 + 66 -66 = 217 u1 u1 = -66/217 = -0.304 m/s (it negative because the direction is opposed the package direction)

1 Answers · Science & Mathematics · 14/03/2013

10. ### A 6.0-kg block is pushed 8.0 m up a rough 37º inclined plane by a horizontal force of 75 N. If the initial spe?

a) 0.5*m*v^2 = 12 J b) F*d = 600 J c) F*d = -200J d) F*d = m*g*(8sin(37)) = -283.38 J e) F*d = 0 J f) W_net = 600 - 200 - 283.38 = 116.62 J

1 Answers · Science & Mathematics · 29/11/2009