Number of results: 8
Tuesday, December 14, 2010 at 4:19pm by TutorCat
The answer is 2. Fnet=Sqrt of 2 F
Sunday, February 12, 2012 at 8:11pm by Maddy
when a karate strike hits wooden blocks, the hand undergoes an acceleration of -6500 m/s2. Medical data indicates the mass of the forearm and hand to be about 0.7 kg. What is the force exerted on the hand by the blocks?
Sunday, December 11, 2011 at 9:06pm by Hannah
7)A bus leaves Dubai at 10 am heading towards Abu Dhabi. The bus is moving at an average velocity of 120 Km/h. At what time is the bus expected to arrive Abu Dhabi assuming that the two cities are 150 Km away?
Tuesday, December 14, 2010 at 4:19pm by faisal
At the local playground a child on a swing has a speed of 2.14 m/s when the swing is at its lowest point. (a) To what maximum vertical height does the child rise, assuming he sits still and "coasts"? Ignore air resistance. (b) To what maximum vertical height does the child ...
Wednesday, October 8, 2008 at 12:45am by kelsey
A cannonball is catapulted toward a castle. The cannonball's velocity when it leaves the catapult is 39 m/s at an angle of 40° with respect to the horizontal and the cannonball is 7.0 m above the ground at this time. (a) What is the maximum height above the ground reached by ...
Thursday, February 16, 2012 at 3:51pm by Anonymous
Two charged particles of equal magnitude (+Q and +Q) are ﬁxed at opposite corners of a square that lies in a plane (see ﬁgure below). A test charge −q is placed at a third corner. If F is the magnitude of the force on the test charge due to only one of the ...
Sunday, February 12, 2012 at 8:11pm by jc
Vo = 39m/s @ 40 Deg. Xo = 39*cos40 = 29.9 m/s. Yo = 39*sin40 = 25.1 m/s. a. hmax = ho + (Yf^2-Yo^2)/2g, hmax = 7 + (0-(25.1)^2) / -19.8=39.1 m. b. Dx = Vo^2*sin(2A)/g, 2A = 80 Deg. c. Xo = 39*cos40 = 29.9 m/s. Yf^2 = Vo^2 + 2g*hmax, Yf^2 = 0 + 19.6*39.1 = 766.36, Yf = 27.7 m/s.
Thursday, February 16, 2012 at 3:51pm by Henry