Show that 5000 cal are required to increase the

University Physics 13
Problem 12E A cord is wrapped around the rim of a solid uniform wheel 0.250 m in radius and of mass 9.20 kg. A steady horizontal pull of 40.0 N to the right is exerted on the cord, pulling it off tangentially from the wheel. The wheel is mounted on frictionless b

Introductory Chemistry 5
Calculate the concentration of each solution in mass percent. (a) 41.2 g \(\mathrm {C_{12}H_{22}O_{11}}\) in 498 g \(\mathrm {H_2O}\) (b) 178 mg \(\mathrm {C_6H_{12}O_6}\) in 4.91 g \(\mathrm {H_2O}\) (c) 7.55 g NaCl in 155 g \(\mathrm {H_2O}\)

University Physics 13
Problem 12DQ A solid conductor has a cavity in its interior. Would the presence of a point charge inside the cavity affect the electric field outside the conductor? Why or why not? Would the presence of a point charge outside the conductor affect the electric field insid

Physics with MasteringPhysics 4
A train is traveling up a \(3.73^{\circ}\) incline at a speed of \(3.25 \mathrm{~m} / \mathrm{s}\) when the last car breaks free and begins to coast without friction. (a) How long does it take for the last car to come to rest momentarily? (b) How far did the last car travel before momentarily coming

Myers' Psychology for AP 2
Which of the following is a positive correlation? a. As study time decreases, students achieve lower grades. b. As levels of self-esteem decline, levels of depression increase. c. People who exercise regularly are less likely to be obese. d. Gas mileage decreases as vehicle weight increases. e. Repea

Mathematical Statistics with Applications 7
Let Y1, Y2, Y3,... Yn be independent standard normal random variables. a What is the distribution of n i=1 Y 2 i ? b Let Wn = 1 n n i=1 Y 2 i . Does Wn converge in probability to some constant? If so, what is the value of the constant?

Quantitative Chemical Analysis 8
(a) When a solution containing 234 mg of butanol (FM 74.12) and 312 mg of hexanol (FM 102.17) in 10.0 mL was separated by gas chromatography, the relative peak areas were butanol:hexanol 1.00:1.45. Considering butanol to be the internal standard, find the response factor for hexanol. (b) Use Equation

Biochemistry 9
Consider the following in light of the concept of levels of structure (primary, secondary, tertiary, quaternary) as defined for proteins. (a) What level is shown by double-stranded DNA? (b) What level is shown by tRNA? (c) What level is shown by mRNA?