Find the voltage across the capacitors in the circuit of Fig. 6.49 under dc conditions. 50 10 20 V2 C2 70 60 V (+I

Convert 2500 gal/min to ft 3 /s.

For the shell-and-tube heat exchanger described in Problem 9.25, compute the pressure difference for both fluids between two points 5.25 m apart if the heat exchanger is horizontal. In Problem Refer...

A heat sink for an electronic circuit is made by machining a pocket into a block of aluminum and then covering it with a flat plate to provide a passage for cooling water as shown in Fig. 9.22....

Calculate the pressure difference across a fully open angle valve placed in a 5-in Schedule 40 steel pipe carrying 650 gal/min of oil (sg = 0.90).

Compute the energy loss that would occur as 50 gal/min of water flows from a tank into a steel tube with an OD of 2.0 in and a wall thickness of 0.065 in. The tube is installed flush with the inside...

Determine the energy loss for a gradual contraction from a DN 125 Schedule 80 steel pipe to a DN 50 Schedule 80 pipe for a flow rate of 500 L/min. The cone angle for the contraction is 105.

Figure 11.31 depicts a DN 100 Schedule 40 steel pipe delivering water at 15°C from a main line to a factory. The pressure at the main is 415 kPa. Compute the maximum allowable flow rate if the...

Oil is flowing at the rate of 0.015 m 3 /s in the system shown in Fig. 11.17. Data for the system are as follows: Oil specific weight = 8.80 kN/ m 3 Oil kinematic viscosity = 2.12 Ã 10 5 m 2...

A refracting astronomical telescope has an objective lens 50 mm in diameter. Given that the instrument has a magnification of 10 , determine the diameter of the eye-beam (the cylinder of light...

What must the focal length of a thin negative lens be for it to form a virtual image 50 cm away (measured from the lens) of an ant located 100 cm away (measured from the lens)? Given (just as a...

What is the speed of a satellite in a geosynchronous orbit about the Earth? Compare it with the speed of the Earth as it orbits the Sun.

A venturi meter similar to the one in Fig. 15.2 has an inlet diameter of 100 mm and a throat diameter of 50 mm. While it is carrying water at 80°C, a pressure difference of 55 kPa is observed...

Find vo(t) in the circuit of Fig. 16.58 . 1H all 25e u(t) V 2 F=vo(t) 4.5u(t) A vo(t) 4 2 +1

The switch in the circuit of Fig. 16.47 has been closed for a long time but is opened at t = 0. Determine i(t) for t > 0. i(t) 2 40 V t = 0 -/4 1/2

If i s (t) = 7.5e 2t u(t) A in the circuit shown in Fig. 16.40 , find the value of i o (t). i,(t) is(t) 0.5 F 2 relle

A car (m = 1200 kg) is traveling at an initial speed of 15 m/s. It then slows to a stop over a distance of 80 m due to a force from the brakes. How much work is done on the car? Assume the...

Determine the resultant of the superposition of the parallel waves E 1 = E 01 sin (t + 1 ) and E 2 = E 02 sin (t + 2 ) when = 120, E 01 = 6, E 02 = 8, 1 = 0, and 2 = /2. Plot each function and...

Answer the following: (a) How many wavelengths of 0 = 500 nm light will span a 1-m gap in vacuum? (b) How many waves span the gap when a glass plate 5 cm thick (n = 1.5) is inserted in the path? (c)...

A standing wave is given by Determine two waves that can be superimposed to generate it. E = 100 sin 7x TX Cos 5Tt

Show that the group velocity can be written as dv = v - di Og

Figure P.7.42 depicts an electric field in time and the Fourier components that compose it. The units are arbitrary. Given that (a) Explain why the series contains both sine and cosine terms. (b) Why...

Examine Fig. P. 7.53, which shows three periodic functions and their corresponding Fourier frequency spectra. Discuss the graphs explaining whats happening in successive parts. What happens to the...

For the wheel described in Problem 16.22, compute the force exerted on the paddle when the wheel rotates at 40 rpm. In Problem Shown in Fig. 16.20 is a small decorative wheel fitted with flat paddles...

Compute the specific weight of air at 25 psig and 105F.

A skateboarder (m = 85 kg) takes a running jump onto a friend???s skateboard that is initially at rest as sketched in Figure P7.37. The friend is standing on the skateboard (mass of friend plus...

Cadmium red light has a mean wavelength of Î»Ì 0 = 643.847 nm (see Fig. 7.45) and a linewidth of 0.001 3 nm. When used to illuminate a Michelson Interferometer it is found that...

Imagine that we have an antenna at the edge of a lake picking up a signal from a distant radio star (Fig. P.9.32), which is just coming up above the horizon. Write expressions for δ and...

A 3 5 card containing two pinholes, 0.08 mm in diameter and separated center to center by 0.10 mm, is illuminated by parallel rays of blue light from an argon ion laser ( 0 = 487.99 nm). If the...

Will we get an interference pattern in Youngs Experiment (Fig. 9.11) if we replace the source slit S by a single long-filament lightbulb? What would occur if we replaced the slits S 1 and S 2 by...

Write a test bench for the elevator controller of Problem 5.10. The test bench has two functions: to simulate the operation of the elevator (including the door operation) and to provide a sequence of...

In the system of Figure 10-33, A, B, and C are BILBO registers. The B 1 and B 2 inputs to each of the registers determine its BILBO operating mode as follows: B 1 B 2 = 00, shift register; B 1 B 2 =...

A car has a top speed of 70 m/s (about 150 mi/h) and has wheels of radius 30 cm. If the car starts from rest and reaches its operating speed after 9.0 s, what is the angular acceleration of the...

An air duct in a building has a radius of 10 cm and a length of 10 m. What pressure is required to push air through the duct at a flow rate of 1.0 m 3 /s?

Determine the sign of each charge q a , q b , and q c in Figure Q17.3. a 9b

When two objects (such as a glass rod and a silk cloth) are rubbed together, electrons can be transferred from one to the other. Can protons also be transferred? Explain why or why not.

A point particle with charge q = 4.5 C is placed on the x axis at x = -10 cm and a second particle of charge Q = 6.7 C is placed on the x axis at x = +25 cm. (a) Determine the x and y components of...

Two particles with the same charge are attached to strings that are 80 cm long and that hang from a ceiling as shown in Figure P17.97. If the angle between the strings is ? = 60? and the particles...

You are given four resistors, each with resistance R. Devise two ways to connect these resistors to get a total equivalent resistance less than R. Figure Ans Q19.12

Two resistors with R 1 = 1500 V and R 2 = 3500 V are connected in series as shown in Figure P19.29. (a) If the battery emf is = 12 V, what is the current through each of the resistors? (b) What is...

How could you connect another resistor to the circuit in Figure P19.42 so as to reduce the brightness of the bulb? That is, would you connect the new resistor to points A and B, A and C, or B and C?...

A particle of unknown charge has a velocity along the +y direction. There is a constant magnetic field along the +z axis, and it is found that the magnetic force on the particle is along +x. Is the...

When a large, time- varying current fl ows through a coil, a piece of steel placed within the coil will quickly become red hot (Fig. Q21.17). Why? If a piece of copper were placed in the coil, would...

The following Verilog code defines a function that computes the factorial of a number recursively. The automatic keyword is used to allow the function to be called recursively. Fill in the missing...

The Curiosity rover touched down on Mars when Earth and Mars were 14 light-minutes apart. At the instant of touchdown, clocks at Mission Control in Pasadena, California, read 10:31 pm. As judged by...

Linear light polarized horizontally passes through a quarterwave plate whose fast axis is /8 rad above the horizontal. Use the phasor method to graphically determine the polarization state of the...

Figure P.11.49 shows a transparent ring on an otherwise opaque mask. Make a rough sketch of its autocorrelation function, taking l to be the center-to-center separation against which you plot that...

Which of the paths shown in Fig. 7-69 could represent a ray of light passing through a glass block in air? A B D

How do unsaturated, saturated, and supersaturated solutions differ?

Cosmic rays carry energy to the earth at about the same rate as a. Sunlight b. Moonlight c. Starlight d. Meteoroids

Draw the structures of the molecules with the following names. (a) 1-Chloro-1-butyne (b) (Z)-4-Bromo-3-methyl-3-penten-1-yne (c) 4-Hexyn-1-ol

The formation of imines, oximes, hydrazones, and related derivatives from carbonyl compounds is reversible. Write a detailed mechanism for the acid-catalyzed hydrolysis of cyclohexanone semicarbazone...

Indicate which reagent or combination of reagents is best suited for each of the following reactions. (a) (b) (c) (d) (e) (f) OH

Reaction review. Without consulting the Reaction Road Map on p. 914, suggest reagents to convert each of the following starting materials into hexanoic acid: (a) hexanal; (b) methyl hexanoate; (c)...

Formulate a mechanism for the reaction of acetyl chloride with 1-propanol shown on p. 932. Page 932 N(CH,CH,), CH3CCI + HOCH,CH,CH3 CH;COCH,CH,CH3 + HN(CH,CH3); Cl (See Problem 35) 75% Propyl...

Give the product(s) of the reactions of acetic anhydride with each of the following reagents. Assume in all cases that the reagent is present in excess. (a) (CH 3 ) 2 CHOH (b) NH 3 (c) (d) LiAlH 4 ,...

Give the products of reaction of methyl pentanoate with each of the following reagents under the conditions shown. (a) NaOH, H 2 O, heat; then H + , H 2 O (b) (CH 3 ) 2 CHCH 2 CH 2 OH (excess) , H +...

Draw and label the given streams and derive expressions for the indicated quantities in terms of labeled variables. The solution of Part (a) is given as an illustration. (a) A continuous stream...

Strawberries contain about 15 wt% solids and 85 wt% water. To make strawberry jam, crushed strawberries and sugar are mixed in a 45:55 mass ratio, and the mixture is heated to evaporate water until...

In determining the primary structure of insulin, what would lead you to conclude that it had more than one polypeptide chain?

(a) Write structural formulas for the two chair conformations of cis-1-isopropyl-4-methylcyclohexane. (b) Are these two conformations equivalent? (c) If not, which would be more stable? (d) Which...

A piston-fitted cylinder with a 6-cm inner diameter contains 1.40 g of nitrogen. The mass of the piston is 4.50 kg, and a 25.00-kg weight rests on the piston. The gas temperature is 30C, and the...

Accounting for buoyancy, what apparent mass of CsCl (density = 3.988 g/mL) in air should you weigh out to obtain a true mass of 1.267 g?

Calculate the pH of a 0.010 M solution of each amino acid in the form drawn here. H,N* NH2 NH2 NH C=0 CH2 CH2 S CH2 CH2 CH2 CH2 (a) HCHCO, (b) H3CHCO, (c) H,NCHCO, Glutamine Cysteine Arginine

You and your team are designing a small tube heater that consists of a small ceramic tube wrapped with a special heater wire composed of Nichrome. When you run an electrical current through the wire,...

The following results were obtained from an experiment carried out to measure the enthalpy of combustion (heat of combustion) of ethanol. The experiment involved heating a known volume of water with...

The diving bell below contains trapped air at the same pressure as the water outside. At the surface, air pressure is 100 kPa. As the bell descends, the pressure on it increases by 100 kPa for every...

Two wires P and Q both obey Hookes law. They are both stretched and have the same strain. The Young modulus of P is four times larger than that of Q. The diameter of P is twice that of Q. What is the...

Give all answers to 3 significant figures. a. 1.20 dm 3 of hydrogen chloride gas was dissolved in 100 cm 3 of water. i. How many moles of hydrogen chloride gas are present? ii. What was the...

a. The successive ionisation energies of boron are shown in Table 3.3. i. Why is there a large increase between the third and fourth ionisation energies? ii. Explain how these figures confirm that...

A car travels around a 90 bend in 15 s. The radius of the bend is 50 m. a. Determine the angular speed of the car. b. Determine the speed of the car.

A spacecraft orbits the Earth in a circular path of radius 7000 km at a speed of 7800 m s 1 . Determine its angular velocity.

Calculate how long it would take a ball to orbit the Earth once, just above the surface, at a speed of 7920 m s 1 . (The radius of the Earth is 6400 km.)

A stone of mass 0.20 kg is whirled round on the end of a string in a vertical circle of radius 30 cm. The string will break when the tension in it exceeds 8.0 N. Calculate the maximum speed at which...

From the displacementtime graph shown in Figure 18.8, determine the amplitude, period and frequency of the oscillations represented. 20 40 60 80 100 120 140 160 Time/ms Displacement/ cm

A cyclist pedals a long slope which is at 5.0 to the horizontal, as shown. The cyclist starts from rest at the top of the slope and reaches a speed of 12 m s 1 after a time of 67 s, having travelled...

This diagram shows three capacitors connected in series with a cell of e.m.f. 1.5 V. a. Calculate the charges Q 1 to Q 6 on each of the plates. b. Calculate the p.d. across each capacitor. Q1||Q2 Q3...

A particular emission spectral line is measured in the laboratory to have a frequency of 7.3 10 14 Hz. a. Calculate the wavelength of this spectral line in the laboratory. b. Calculate the observed...

Two compounds with the molecular formula C 5 H 10 O have the following 1 H and 13 CNMR data. Both compounds have a strong IR absorption band in the 17101740 cm1 region. Elucidate the structure of...

Photons of energies 1.0 eV, 2.0 eV and 3.0 eV strike a metal surface whose work function is 1.8 eV. a. State which of these photons could cause the release of an electron from the metal. b. Calculate...

Figure 4.10 is a histogram of measured mid-upper arm circumferences of 300 randomly selected adults Adult Mid-Upper Arm Circumferences 50 40 30 20 10 20 24 28 32 36 40 44 Circumference (centimeters)...

The braking reaction times of 500 randomly selected drivers, were measured under standard conditions. Describing Distributions. For each distribution described in Exercises, answer the following...

Ayurveda is a traditional medical system commonly used in India. Listed below are the lead concentrations (in g/g) measured in different Ayurveda medicines (manufactured in the United States). (Data...

Identify the distribution in Figure 5.7 that is not normal. Of the two normal distributions, which has the larger standard deviation? nnn 0 25 50 75 100 0 25 50 75 100 0 25 50 75 100 (a) (b) (c)

Weights of adult males are normally distributed with a mean of 85.5 kg and a standard deviation of 17.7 kg. Assume that many samples of size n are taken from a large population of adult males and the...

The rate of inflation in the 1970s was much higher than it is today, so prices today must be lower overall. Does It Make Sense? For Exercises, determine whether the statement makes sense (or is...

There is a 0.9968 probability that a randomly selected 50-year-old female will live through the year. A life insurance company charges $226 for insuring that the female will live through the year. If...

I estimate that there is a probability of 0.5 that the batteries in my calculator will need to be replaced sometime during the next 3 years. Does It Make Sense? For Exercises, determine whether the...

Consider the graph of the normal distribution in Figure 5.12, which gives relative frequencies in the distribution of mens heights. The distribution has a mean of 69.6 inches and a standard deviation...

What mass of Cu(IO 3 ) 2 can be formed from 0.475 g of CuSO 4 . 5H 2 O?

Based on data from the College Board, SAT scores on the Math Level 1 test are normally distributed with a mean of 621 and a standard deviation of 96. a. Find the percentage of scores greater than...

An RLC circuit has a resistance of 255 , an inductance of 146 mH, and a capacitance of 877 nF. (a) What is the resonant frequency of this circuit? (b) If this circuit is connected to a sinusoidal...

The diagram shows a simplified household circuit. Resistor r 1 = 240.0 represents a lightbulb; resistor r 2 = 12.0 represents a hair dryer. The resistors r = 0.50 (each) represent the resistance...

Data from the National Vital Statistics Reports and the U.S. Department of Agriculture show that over the past several years in Maine, the divorce rate declined and per capita, margarine consumption...

The scatterplot in Figure 7.18 depicts paired data values consisting of the weight (in grams) and year of manufacture for each of 72 pennies. a. Considering the complete collection of data, does...

When 650 adults are randomly selected, find the probability that 84 or more of them are lefthanded. Does the result of 84 lefthanded adults appear to be unusually high?

Calculate the change in entropy when 15 g of carbon dioxide gas is allowed to expand from 1.0dm 3 to 3.0dm 3 at 300K.

Consider a system of particles uniformly distributed in space, with a constant particle number density n 0 , and characterized by a velocity distribution function f(v) such that where K 0 is a...

The rotational constants B 0 have been determined for three isotopic derivatives of chloroacetylene: Assume that the carbon isotope is 12 C in all cases. Calculate the three bond distances in...

The rotational constants for HF are (a) Find the initial J value and the frequency for the most intense rotational transition taking place in the ground vibrational state at room temperature. (b)...