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1) On a banked race track, the smallest circular path on which cars can move has a radius of 120 m, while the largest has a radius 155 m, as the drawing illustrates. The height of the outer wall is 18 m.
(a) Find the smallest speed at which cars can move on this track without relying on friction. m/s
(b) Find the largest speed at which cars can move on this track without relying on friction. m/s
2) A jet flying at 105 m/s banks to make a horizontal circular turn. The radius of the turn is 3810 m, and the mass of the jet is 2.04 105 kg. Calculate the magnitude of the necessary lifting force.
the velocity of a boat with respect to the water is 4.0 m/s at an angle of 30.0 degrees North of West. find the velocity of the boat with respect to the ground
A duck has a mass of 2.4 kg. As the duck paddles, a force of 0.06 N acts on it in a direction due east. Find magnitude and direction south of east
Your roommate is working on his bicycle and has the bike upside down. He spins the 70.0cm -diameter wheel, What is the pebble's acceleration
One sphere is negatively charged, with net charge -2.25 mu C, and other sphere is positively charged, with net charge 4.00 mu C. The charge is uniformly distributed within the volume of each sphere.
While John is travelling along a straight interstate highway he notices that the mile marker reads 243 km john travels until he reaches his path to the 178 km marker what is john's resultant displacement from the 243 km marker.
A box with a mass of 6 kg is lifted (without acceleration) by a height of 6.0 m in order to place it upon the shelf of a closet.
A projectile is shot on level ground with a horizontal velocity of 18 m/s and a vertical velocity of 41 m/s, Find the time the projectile is in the air. The acceleration due to gravity is 9.8 m/s2
A pear of 10.2 cm height is placed at a distance of 20.1 m in front of a lens that has a focal length of 26 mm. How large is the image of the pear
Bruce stands on a bank beside a pond, grasps the end of a 10.00-m long rope attached to a nearby tree and swings out to drop into the water. If the rope starts at an angle of 36° with the vertical, what is Bruce's speed at the bottom of swing.
A cell has a 7.0-nm-thick membrane with a total membrane area of 6.0\times10^{-9}\;{\rm m^2}, How many sodium ions does this charge correspond to
A nonconducting solid sphere of radius R has a volume charge density that is proportional to the distance from the center. That is, ? = Ar for r R, where A is a constant. (Use the following as necessary: 0, A, r, and R, as necessary.)
Calculate the labour price (rate) variances for each worker level. b. Compute the labour efficiency variances for each worker level. c. Compute the labour mix variances for each worker level.
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