# Posts by vik

Total # Posts: 18

**math**

I don't think this question is complete. You have to tell us what (m+15)(n-30) is equal to.

**Calculus AB**

The radius of a 12 inch right circular cylinder is measured to be 4 inches, but with a possible error of ±0.2 inch. What is the resulting possible error in the volume of the cylinder? Include units in your answer. r = 4 in. h = 12 in. V = pi*r^2 * h = 3.14*4^2 * 12 = ...

**Calculus AB**

Use the table below to evaluate d/dx [f[g(2x)]] at x = 1 x 1 2 3 4 f(x) 6 1 8 2 f '(x) 6 1 8 2 g(x) 1 4 4 3 g '(x) 9 5 5 -4 I don't know how to continue with this question. i know [g(2x)]=8...pretty sure

**Economics**

If Mark sells cattle to a meat packing plant, Mark is part of the ____________market. The plant is a ___________. This question will have two correct answers. resource, monopsony buyer resource, household resource, firm product, firm resource, part of the circular flow Which ...

**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?

**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 ...

**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?

**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?

**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.

**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 ...

**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?

**chemistry**

7435.8

**chemistry**

49.32

**prealgebra**

thnk you so #5 is 135

**prealgebra**

mrs. sue am i right???

**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?

**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

**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