Thursday
November 27, 2014

Posts by vik


Total # Posts: 14

physics
A Ferris wheel rotates at an angular velocity of 0.29 rad/s. Starting from rest, it reaches its operating speed with an average angular acceleration of 0.039 rad/s2. How long does it take the wheel to come up to operating speed?
October 22, 2014

physics
A merry-go-round at a playground is a circular platform that is mounted parallel to the ground and can rotate about an axis that is perpendicular to the platform at its center. The angular speed of the merry-go-round is constant, and a child at a distance of 1.4 m from the ...
October 22, 2014

physics
A rotating object starts from rest at t = 0 s and has a constant angular acceleration. At a time of t = 7.0 s the object has an angular velocity of ω = 16 rad/s. What is its angular velocity at a time of t = 14 s?
October 22, 2014

physics
A meter stick is rotated about the end labeled 0.00 cm, so that the other end of the stick moves through an arc length of 7.40 cm. Through what arc length s does the 25.0-cm mark on the stick move?
October 22, 2014

physics
A motorcycle is traveling up one side of a hill and down the other side. The crest of the hill is a circular arc with a radius of 43.0 m. Determine the maximum speed that the cycle can have while moving over the crest without losing contact with the road.
October 22, 2014

physics
. A car is safely negotiating an unbanked circular turn at a speed of 19 m/s. The road is dry, and the maximum static frictional force acts on the tires. Suddenly a long wet patch in the road decreases the maximum static frictional force to one third of its dry-road value. If ...
October 22, 2014

physics
The blade of a windshield wiper moves through an angle of 90.0° in 0.398 s. The tip of the blade moves on the arc of a circle that has a radius of 0.352 m. What is the magnitude of the centripetal acceleration of the tip of the blade?
October 22, 2014

chemistry
7435.8
November 27, 2012

chemistry
49.32
November 27, 2012

prealgebra
thnk you so #5 is 135
February 27, 2012

prealgebra
mrs. sue am i right???
February 27, 2012

college
to how much water should 50.0 ml of 12.0 M HCl acid to be added to produce a 4.00 M solution?
March 18, 2010

Orgo
this is a repost because i am really stuck What is the structure of the magnesium salt that is created as a byproduct of the Grignard reaction: bromobenzene + mg = phenylmagnesium bromide phenylmagnesium bromide + benzophenone = triphenylmethanol
November 16, 2009

Organic Chemistry
What is the structure of the magnesium salt that is created as a byproduct of the Grignard reaction: bromobenzene + mg = phenylmagnesium bromide phenylmagnesium bromide + benzophenone = triphenylmethanol
November 16, 2009

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