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An optically active compound A, C6H10O2, when dissolved in NaOH solution, consumed one equivalent of base. On acidification, compound A was slowly regenerated. Treatment of A with LiAlH4 in ether followed by protonolysis gave an optically inactive compound B that reacted with acetic anhydride to give an acetate diester derivative C. Compound B was oxidized by aqueous chromic acid to β-methylglutaric acid (3-methylpentanedioic acid), D. Identify compounds A, B, and C; do not specify stereochemistry.

The square conducting loop lies in the xy plane of an xyz coordinate system. The loop is in a uniform magnetic field that points in the positive z direction and is decreasing at a rate of 0.070 T/s. The area of the square is 0.04 m^2.

What is the magnitude of the induced emf in the loop?

What is the direction of the induced current in the loop?

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In the figure, a conducting rod is shown moving to the right along U-shaped conducting rails. The apparatus is in a uniform magnetic field perpendicular to the plane of the figure. As viewed from above, in what direction does the induced current flow in the U-shaped apparatus?

A. An induced current flows counterclockwise in the U-shaped apparatus.

B. An induced current does not flow in the U-shaped apparatus.

C. The direction of the induced current cannot be determined from the given information.

D. An induced current flows clockwise in the U-shaped apparatus.

Two resistors connected in a series have an equivalent resistance of 8.0 ohms. The same resistors are connected in parallel have an equivalent resistance of 1.5 ohms. What is the resistance of each resistor?

The voltage applied across a given parallel-plate capacitor is doubled. How is the energy stored in the capacitor affected?

A.The energy stored in the capacitor is decreased to one-half of its original value. B.The energy stored in the capacitor remains constant.

C.The energy stored in the capacitor quadruples its original value.

D.The energy stored in the capacitor is decreased to one-fourth of its original value.

E.The energy stored in the capacitor doubles its original value.

A particle at the origin of a Cartesian coordinate system carries a charge of 3.89*10-9. What are the magnitude and direction of the electric field at (a) ( 4.00mm, 0), (b) (0,4.00mm), and (c) (-2.829 mm, 2.829 mm)?

First you stretch a spring to twice its initial length and send pulse A from one end to the other. Then you stretch the spring to three times its initial length and send pulse B from one end to the other. How does the time interval needed for A to travel through the spring compare with the time interval needed for B to do so?

Tossing rocks into the center of a pond, you notice that the ripples are evenly spaced 170 mm apart. If it takes 5.0 s for 15 ripples to pass a log sticking up out of the water how long does it take a ripple to reach shore if the pond is 12 m in diameter?

You push with a steady force of 19 N on a 48 kg desk fitted with casters (wheels that spin) on its four feet. How long does it take you to move the desk 5.9 m across a warehouse floor?

Enough of a monoprotic acid is dissolved in water to produce a 0.0137 M solution. The pH of the resulting solution is 6.24. Calculate the Ka for the acid.

(Hint: The inital 10–7 M H from water is not negligible. If [H ]iniital = 10–7 and [H ]final = 5.8 × 10-7, by how much did the concentration change? What does that say about how much A– was produced?)

Draw the major product formed in the following reaction of an epoxide with methoxide in methanol. the name of the epoxide in the reaction is 2,2,3-trimethyloxirane. (The picture of the epoxide is the usual epoxide ring with two methyl groups on one carbon of the ring and one methyl group on the other carbon of the ring). Methoxide and Methanol are CH3O- and CH3OH

http://media.cheggcdn.com/media/30c/30c4bdc7-5b8e-...

The major product of this reaction exists as two stereoisomers. Draw both isomers. Show all hydrogen atoms in the structures. Use wedge-and-dash bonds to indicate the stereochemistry.

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Predict the neutral products of the following reaction. Show stereochemistry clearly. The (R) or (S) designation for each stereocenter carbon atom is specified adjacent to the answer box, please draw the products accordingly.

A horizontal 2.0-kg rod is 2.0 m long. An 7.0-kg block is suspended from its left end, and a 3.5-kg block is suspended from its right end.

Determine the magnitude of the single extra force necessary to keep the rod in mechanical equilibrium?

At what distance from the left end of the rod must the point of application of this force be?

An ice figure skater starts out spinning at 0.83 revolutions per second with her arms outstretched, as shown in (Figure 1) . She wears lightly weighted bracelets to enhance the spin-up effect when she pulls her arms in. http://session.masteringphysics.com/problemAsset/1...

Determine the increase in her rotational kinetic energy?

http://session.masteringphysics.com/prob... A marble of inertia m is held against the side of a hemispherical bowl as shown in (Figure 1) and then released. It rolls without slipping. The initial position of the marble is such that an imaginary line drawn from it to the center of curvature of the bowl makes an angle of 30∘ with the vertical. The marble radius is Rm = 10 mm, and the radius of the bowl is Rb = 190mm .

Determine the rotational speed of the marble about its center of mass when it reaches the bottom?

A horizontal 2.0-kg rod is 2.0 m long. An 7.0-kg block is suspended from its left end, and a 3.5-kg block is suspended from its right end.

Determine the magnitude of the single extra force necessary to keep the rod in mechanical equilibrium?

Determine the direction of the single extra force necessary to keep the rod in mechanical equilibrium?

A.Downward

B.Upward

C.To the right

D.To the left

At what distance from the left end of the rod must the point of application of this force be?

A 680-kg disk of radius 1.2m is mounted on a fixed axle. A force exerted on the disk causes a constant torque that gives the disk a rotational acceleration magnitude of 0.30 s−2 for 5.0 s . The disk had an initial rotational speed of 4.5 s−1 .

How much work was done to provide the torque, assuming no energy is lost to friction?

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(Figure 1) is a top view of a hand-driven carousel in a park. Four parents of the children riding on the device each push on the carousel in different ways. The forces exerted by each of the four parents and the positions at which the forces are exerted are labeled A-D.

Rank the parents' pushes in order of decreasing torque they cause on the carousel?