AAA

The speed of radio waves is 3*10^8m/s, the same as the speed of light. If a spacecraft transmits a radio signal with frequency 3*10^9Hz, what is the wavelength of those waves?

13 years ago

Given that the oboe's lowest note is B flat 3 and its length approximately 64 cm, what length would you expect for the bassoon, whose lowest note is B flat 1? What length for the contrabassoon, lowest note b flat 0?

13 years ago

The clarinet's lowest note is D3, 147 Hz. What is its effective length, that is, the length of an idealized closed pipe that has this frequency for its first mode? Explain why this is less than the actual length of the instrument?

13 years ago

The trombone's low B flat 2 is played with the slide in first position. What is its effective length, that is the length of an idealized closed tube with the same second mode frequency? Estimate how far the slide should be moved to reach second position i...

13 years ago

Suppose you make a tape recording of a male voice singing slowly and playing it back at double speed. What will happen to the pitch of each note? What will happen to the formant frequencies of the vowels? Will it merely sound like a woman singing fast?

13 years ago

if you stand at one side os a stage with hard parallel side walls 17m apart and make a handclap, how often do the flutter echoes arrive?

13 years ago

I want to make solutions of pH 3.5, 4.5, 6.5, 8.5 and 10.5 from 0.1 M HCl and 0.1 M NaOH. how many ml shall I take from each solution to make these pH levels?

13 years ago

I have a 40 ml solution of pH 4.36. I need to make this solution at pH 8.5 by adding extra 10 ml of HCl and NaOH. Thanks

13 years ago

Light from a coherent monochromatic laser of wavelength λ=2.29e-4 m is incident on two slits, both of width a, separated by a distance d. The slits are placed a distance L away from a screen where L≫d and L≫a. The diffraction/interference intensity is plo...

12 years ago

two brothers together owned 1/3 of a small rice mill valued at 1,260.000. One brother owned 3/7 as much as the other. What is the value of each one's share

9 years ago

The denominator of a certain fraction exceeds the numerator by 1. The reciprocal of the fraction exceeds 3/4 by 7/12. Find the fraction.

9 years ago

given the following equations: 2x-3y=10 3x=4y=15 which one of the regression equation x on y? show computation

8 years ago

if one card is drawn from a normal pack of 52 playing cards,what is the probability of getting a king or a heart?

8 years ago

B owes $3000 due 2 years from today without interest and $2000 with interest at 4% compounded quarterly due in 6 years from today.if money worth is 5% compounded semiannually what single payment made 4 years from today will discharge his debts?

8 years ago

Let Θ1, Θ2, W1, and W2 be independent standard normal random variables. We obtain two observations, X1=Θ1+W1,X2=Θ1+Θ2+W2. Find the MAP estimate θ^=(θ^1,θ^2) of (Θ1,Θ2) if we observe that X1=1, X2=3. (You will have to solve a system of two linear equations...

8 years ago

For the model X=Θ+W, and under the usual independence and normality assumptions for Θ and W, the mean squared error of the LMS estimator is 1(1/σ02)+(1/σ12), where σ02 and σ12 are the variances of Θ and W, respectively. Suppose now that we change the obse...

8 years ago

A closed surface is constructed in the space between two large parallel metal plates, where there is a constant electric field E. The magnitude of the field is |E| = 1880 N/C. The numbers (1), (2), and (3) in the simulation label small increments of area...

5 years ago

The total charge on a uniformly charged ring with diameter 26.0 cm is −57.3 µC. What is the magnitude of the electric field along the ring's axis at the following distances from its center? (a) 2.60 cmN/C, (b) 13.0 cmN/C, (c) 26.0 cm N/C, (d) 2.08 m N/C

5 years ago

A uniform electric field of 775 N/C is produced within a particle accelerator. Starting from rest, what are the following? (a) the speed of an electron placed in this field after 25.4 ns have elapsed m/s (b) the speed of a proton placed in this field afte...

5 years ago

The figure below shows a dipole. If the positive particle has a charge of 33.9 mC and the particles are 2.48 mm apart, what is the electric field at point A located 2.00 mm above the dipole's midpoint? (Express your answer in vector form.) The figure have...

5 years ago

The figure below shows four small charged spheres arranged at the corners of a square with side d = 25.0 cm on each side.(Let q1 = +3.00 nC, q2 = +9.00 nC, q3 = +6.00 nC, and q4 = +5.00 nC. Assume q3 is located at the origin and +x axis is to the right an...

5 years ago

Given the arrangement of charged particles in the figure below, find the net electrostatic force on the q2 = 12.33-µC charged particle. (Assume q1 = 5.15 µC and q3 = −15.18 µC. Express your answer in vector form.) The figure is a xy coordinate measure in...

5 years ago

A particle with charge q1 = +4.4 µC is located atx = 0, and a second particle with charge q2 = −2.3 µC is located at x = 15 cm. Determine the location of a third particle with charge q3 = +3.6 µC such that the netelectric field at x = 25 cm is zero.

5 years ago

A uniform electric field given by E = (2.35i − 5.60j) ✕ 105 N/C permeates a region of space in which a small negatively charged sphere of mass 1.65 g is suspended by a light cord (see figure below). The sphere is found to be in equilibrium when the string...

5 years ago

A circular hoop of radius 0.60 m is immersed in a uniform electric field of 27.0 N/C. The electric field is at an angle of 30.0° to the plane of the hoop. Determine the electric flux through the hoop. (Enter the magnitude.) N · m2/C

5 years ago

The net electric flux through a Gaussian surface is −680 N · m2/C. What is the net charge of the source inside the surface? nC

5 years ago

Two infinitely long, parallel lines of charge with linear charge densities 4.1 µC/m and −4.1 µC/m are separated by a distance of 0.50 m. What is the net electric field at points A, B, and C as shown in the figure below? (Express your answers in vector for...

5 years ago

Two uniform spherical charge distributions (see figure below) each have a total charge of 85.7 mC and radius R = 15.2 cm.Their center-to-center distance is 37.50 cm. Find the magnitude of the electric field at point A midwaybetween the two spheres. N/C we...

5 years ago

The infinite sheets in the figure below are both positively charged. The sheet on the left has a uniform surface charge density of 45.4 µC/m2, and the one on the right has a uniform surface charge density of 22.7 µC/m2. (Express your answers in vector for...

5 years ago

A capacitor is constructed with two parallel metal plates each with an area of 0.61 m^2 and separated by d = 0.80 cm. The two plates are connected to a 5.0-volt battery. The current continues until a charge of magnitude Q accumulates on each of the opposi...

5 years ago

Find the electric field due to an infinite plane of positive charge with uniform surface charge density. slideplayer.com/slide/5077881/16/images/30/Example+24.5+A+Plane+of+Charge.jpg

5 years ago

Is this right? How much energy is stored in the 50mF capacitor when Va-Vb= 22V? d2vlcm61l7u1fs.cloudfront.net/media%2F124%2F124132e5-a337-4114-a87e-52ff10e2d432%2FphpiTZORo.png For the parrallel of top25uF and bottom25uF, I got Ceq=25+25=50uF For the seri...

5 years ago

A source consists of three charged particles located at the vertices of a square (see figure below), where the square has sides of length 0.213 m. The charges are q1 = 33.0 nC, q2 = −64.0 nC, and q3 = 54.5 nC. Find the electric potential at point A locate...

5 years ago

A 9.00-nC charged particle is at point B in a uniform electric field with a magnitude of 975 N/C (see figure below). What is the change in electric potential experienced by the charge if it is moved from B to A along the following paths? (Consider that l...

5 years ago

Calculate the equivalent capacitance between points a and b for each of the two networks shown in the figure below. Each capacitor has a capacitance of 5.22 µF. (Give your answers to at least two decimal places.) Network 1 µF Network 2 µF www.webassign.ne...

5 years ago

For the four capacitors in the circuit shown in the figure below, CA = 1.00 µF, CB = 4.50 µF, CC = 2.40 µF, and CD = 3.40 µF. What is the equivalent capacitance between points a and b?...µF www.webassign.net/katzpse1/27-p-030.png

5 years ago

The plates of an air-filled parallel-plate capacitor with a plate area of 18.5 cm2 and a separation of 9.25 mm are charged to a 125-V potential difference. After the plates are disconnected from the source, a porcelain dielectric with κ = 6.5 is inserted...

5 years ago

An aluminum wire has a diameter of 0.395 mm. What length of the wire has a resistance of 2.60 Ω? m

5 years ago

A two-slice bread toaster consumes 849.0 W of power when plugged into a 120.0-V source. (a) What is the current in the toaster? A (b) What is the resistance of the coils in the toaster? Ω

5 years ago

A copper wire that has a cross-sectional diameter of 3.000 mm has a current of 1.141 A. (a) What is the current density? (b) What is the total charge that passes by a certain location along the wire in 1.500 s?

5 years ago

If the switch in the figure below is closed, use the values given to find the potential difference between the following points. (Let emf = 20 V and R = 29 Ω. Assume the wires are ideal.) www.webassign.net/katzpse1/29-p-004-alt.png

5 years ago

Three batteries and four resistors are connected in a circuit as shown in the figure below. (Let emf1=70.0V, emf2=455.0V, and emf3=212.0V. Due to the nature of this problem, do not use rounded intermediate values in your calculations (a) What is the curre...

5 years ago

The emf in the figure below is 4.62 V. The resistances are R1=41.0Ω, R2=27.5Ω, and R3=39.5Ω. Find the following. (a) the current in each resistor (Give your answers to at least three significant figures.) I1 =---A I2 =---A I3 =---A (b) the power consumed...

5 years ago

The figure below shows a circuit with a 12.0-V battery connected to four resistors. How much power is delivered to each resistor? (Consider the following values: R1 = 1.35 Ω, R2 = 2.15 Ω, R3 = 3.95 Ω, R4 = 4.80 Ω.) www.webassign.net/katzpse1/29-p-046-alt....

5 years ago

Calculate the equivalent capacitance between points a and b for each of the two networks shown in the figure below. Each capacitor has a capacitance of 9.52 µF. (Give your answers to at least two decimal places.) www.webassign.net/katzpse1/27-p-021.png

5 years ago

Can someone please tell me what methods of transportation were used by immigrants from Russia during the Progressive era?? need help asap, but cant find the answer anywhere!!!!

5 years ago

One common type of cosmic ray is a proton traveling at close to the speed of light. If the proton is traveling downward, as shown in the figure below, at a speed of 2.03 ✕ 10^7 m/s, what are the magnitude and direction of the magnetic field at point B? ww...

5 years ago

A straight conductor between points O and P has a mass of 0.54 kg and a length of 1.5 m and carries a current of 12 A (see figure below). It is hinged at O and is placed in a plane perpendicular to a magnetic field of 3.4 T. If the conductor begins from r...

5 years ago

The figure below shows very long current-carrying wires. Using the coordinate system indicated (with the z axis out of the page), state the direction of the magnetic field at point P in each case. www.webassign.net/katzpse1/30-p-009.png

5 years ago

A proton is accelerated from rest through a 5.70-V potential difference. (a) What is the proton's speed after it has been accelerated? (b) What is the maximum magnetic field that this proton produces at a point that is 4.00 m from the proton? (Enter the m...

5 years ago

I just want to know the direction for this question. I use the right hand rule and it shows the magnetic field is going into the page but that is not the answer neither is to the left or right. The answer could be any of these choices up, down, out of the...

5 years ago

A 35 μF capacitor is in a series with a 270 KΩ resistor. Initialy, the voltage across the capacitor is 300 V. A multimeter whose resistance is equal to twice the resistor resistance is placed in parallel with the resistor. How long does it take for the vo...

5 years ago

The figure below shows a circular conducting loop with a 4.70-cm radius and a total resistance of 1.10 Ω placed within a uniform magnetic field pointing into the page. (a) What is the rate at which the magnetic field is changing if a counterclockwise curr...

5 years ago

At one instant, a current of 8.0 A flows through part of a circuit as shown in the figure below. Determine the instantaneous potential difference between points A and B if the current starts to decrease at a constant rate of 1.0 ✕ 102 A/s. (Assume that R...

5 years ago

After being closed for a long time, the switch S in the circuit shown in the figure below is thrown open at t = 0. In the circuit, emf = 24.0 V, RA = 4.10 kΩ, RB = 6.80 kΩ, and L = 608 mH. (a) What is the emf across the inductor immediately after the swit...

5 years ago

The figure below shows a circuit with em f = 5.00 V, R = 6.10 Ω, L = 76.0 mH, and C = 2.60 µF. After a long time interval at the position a shown in the figure, the switch S is thrown to position b at time t = 0. (a) What is the maximum charge on the capa...

5 years ago

A fully charged capacitor and a 0.32-H inductor are connected to form a complete circuit. If the circuit oscillates with a frequency of 4.1 ✕ 103 Hz, determine the capacitance of the capacitor.

5 years ago

An AC generator delivers an alternating current I(t) = (3.4 A) sin[(140π rad/s)t] to a single resistor in series with the generator. (a) What is the rms value of the current in the circuit? (b) If the resistor has a resistance of 240.0 Ω, what is the rms...

5 years ago

A series RLC circuit with a resistance of 116.0 Ω has a resonance angular frequency of 5.1 ✕ 105 rad/s. At resonance, the voltages across the resistor and inductor are 60.0 V and 40.0 V, respectively. (b) At what frequency does the current in the circuit...

5 years ago

The figure below shows a series RLC circuit with a 20.0-Ω resistor, a 390.0-mH inductor, and a 23.0-µF capacitor connected to an AC source with Vmax = 60.0 V operating at 60.0 Hz. What is the maximum voltage across the following in the circuit? (a) resist...

5 years ago

A block is constructed from layers of cubic zirconia (n = 2.14), flint glass (n = 1.89), and quartz (n = 1.54) as shown in the figure below. The block is surrounded by air. A ray of monochromatic light is incident on the cubic zirconia–flint glass interfa...

5 years ago

What is the minimum value of the index of refraction of a right-angled, isosceles prism for which a light ray entering normally on one face will be totally internally reflected as shown in the figure below? Assume the index of refraction of air is 1.00029...

5 years ago

below the surface of still water. A boat is located where an incident ray from the fish encounters the boundary, and its refracted ray runs parallel to the surface. Find the horizontal distance r from the point on the surface directly above the fish to th...

5 years ago

Estimate the magnification and focal length of the pitcher of water shown in the figure below. (Assume that the tree is about 42 ft tall and its inverted image is about 1 foot tall. Also assume that the tree is about 220 ft from the pitcher. Include the s...

5 years ago

An object is in front of a converging lens with a focal length of 17.0 cm. The image seen has a magnification of −2.10.(Include the sign of the values in your answers.) (a) How far is the object from the lens? (b) If the object has a height of −15.0cm bec...

5 years ago

The figure below shows an object placed a distance do1 from one of two converging lenses separated by s = 1.00 m. The first lens has focal length f1 = 24.0 cm, and the second lens has focal length f2 = 46.0 cm. An image is formed by light passing through...

5 years ago

A series RLC circuit has an impedance of 120ohm and a resistance of 64ohm. What maximum power is delivered to this circuit when Vrms = 90 volts?

5 years ago

At t = 0 the switch S is closed with the capacitor uncharged. If C = 30 micoF, rmf= 50 V, and R = 10 k, what is the potential difference across the resistor as soon as the switch is closed?

5 years ago

Determine the maximum voltage drop across the resistor in the circuit. s.yimg.com/tr/i/10ad923b2d124cbc9a6df99028e9a1b3_A.png

5 years ago

Three long wires parallel to the x axis carry currents as shown. If I = 20 A, what is the magnitude of the magnetic field at the origin? s.yimg.com/tr/i/9bacafa55fa74dc69eab258d4336b1d6_A.png

5 years ago

Light rays strike a plane mirror at an angle of α = 38.5° as shown in the figure below. What is the angle when the reflected rays are parallel to the first mirror incident ray? s.yimg.com/tr/i/eed6f7a2c848473f8bffe8af4faac91a_A.png

5 years ago

An infinite line charge of linear density  = 0.30 µC/m lies along the z axis and a point charge q = 6.0 µC lies on the x axis at x = 3.0 m. The y component of the electric field at the point P on the y axis at y = 2.0 m is approximately s.yimg.com/tr/i/6...

5 years ago

When an object is located in point 3, the image produced by the converging lens is around near point? s.yimg.com/tr/i/290938f817ee48fea6042d575275a44f_A.png

5 years ago

If a positive charge is placed inside the electric field, on what point would you place it, in order to have the highest electric force? s.yimg.com/tr/i/5e1e10cabc734436ac5734621d8de2c5_A.png

5 years ago

What is the magnitude of the potential different across the 5ohm resistor? d2vlcm61l7u1fs.cloudfront.net/media%2F457%2F45707913-9246-43e3-9ef0-2fed302445c2%2Fimage

5 years ago

Question: One ray is shown as it leaves an object placed before a lens. If this ray were continued to show it path through the lengh the lens, it would pass through a point. media.cheggcdn.com/media/22f/22fabf14-a7fe-431f-98bb-74971d8cf0d6/phpM5Uzo5.png

5 years ago

The figure shows the orientation of a rectangular loop consisting of 80 closely wrapped turns each carrying a current I. The magnetic field in the region is ( ) mT. The loop can turn about the y axis. If the direction between area and magnetic field is 30...

5 years ago

A loop of wire (resistance = 2.0 m) is positioned as shown with respect to a long wire which carries a current. If d = 1.0 cm, D = 6.0 cm, and L = 1.5 m, what is the magnetic flux (in Wb )in the loop at an instant when the current in the wire is 100 A? T...

5 years ago

As shown in the figure two loops carry currents with I1 = 3.6 A and I2 =9.4 A. The radii r1 = 12.5 cm and r2 = 18.5 cm. If a long current carrying wire is placed at point A parallel to Y axis, find the magnetic field at the origin. The long straight wire...

5 years ago

I1 = I2= I3 = 4.00A. If d = 33cm, what is the magnetic field at A? How to I get to the answer 1.71*10^-6T to the right s.yimg.com/tr/i/9f16ab2fe6b044dd8a1f903167872e95_A.png

5 years ago

The figure shows a cross section of three parallel wires each carrying a current of 15 A. The currents in wires A and B are into paper, while that in wire C is out of the paper. If the distance R = 5.0 mm, what is the magnitude of the force on a 4.0-m len...

5 years ago

A rod moves on two horizontal frictionless conducting rails, as shown. The magnetic field in the region is directed perpendicularly to the plane of the rails and is uniform and constant. If a constant force of 0.60 N moves the bar at a constant velocity o...

5 years ago

A rectangular coil moving at a constant speed v enters a region of uniform magnetic field from the left. While the coil is entering the field, the direction of the induced current is s.yimg.com/tr/i/bb3e12ac8cd9487d8255b50aa19ae595_A.png

5 years ago

Which of the following was a principle from the Magna Carta that impacted colonists' beliefs about government? A. the belief in freedom of religion B. the belief in the monarchy's right to tax C. the belief in the king's divine right to rule D. the belief...

4 years ago

Dr. Chen believes an outdated regulation is harming her patients she wants the rule to change on which part of the foufr level model of healthcare system should she focus her attention.

1 year ago

Marixa wants to find a job that will allow her to part of a care team which of these task would marina perform in that type of job

1 year ago

in the four level model of the healthcare system who or what is in the middle of the model Patient, Physician,Physician's office, hospita

1 year ago

what we're the four humors that European doctors in the Middle Ages wanted to balance A. Water, air,fire, and earth B. Blood, phlegm, yellow bile and black bile C. intelligence, love, disappointment and anger D. North, south, east, west

1 year ago

During what historical era did some doctors start using disinfectants A. Ancient times B. Renaissance C. Industrial Revolution D.twelfth century

1 year ago

What technique did Hippocrates use when he treated patients A. bloodletting B. dissection C. In-depth interviews D. careful observation

1 year ago

Max is intreseted in a career in spectialty services A job which of these places would most likley be a good fit for him A. General hospital B. Office of a family practice doctor C. Emercengy care unit D. Office of an orthopedic clinic

1 year ago

Madison is interested in helping care for patients In a nursing home or hospice facility what type of medical career is this. A. Custodial services B. urgent Care C. Diagnostic services D. Therapeutic care

1 year ago

Lupita just got a Job at an imaging laboratory what type of service is offered there A. Diagnostic B. Custodial C. Therapeutic D primary

1 year ago

you should divid 48 by 6

16 years ago

75

12 years ago

Please, Q10?

12 years ago

anyone for question 3 please??????

12 years ago

a) (sigma/(2*epsilon_0))-(rho*D/(2*epsilon_0)) c)-sigma/(2*epsilon_0)+(rho*D/(2*epsilon_0))

12 years ago

Please, Question 3

12 years ago

b) -sigma/(2*epsilon_0)-rho*(D- d)/(2*epsilon_0) +rho*d/(2*epsilon_0)

12 years ago

How I can know my denominator watching my grahp BG?

12 years ago

7) a) lambda/0.5 b) lambda/0.125 Please question 3, 5, 8

12 years ago

Please me, question 5

12 years ago

Thank you so much! Question 10??

12 years ago

Just so everyone is clear, Smile More is right. Just put in the answers in the order he has them. do not pay attention to eveything above. BECAUSE the questions in the top of this post are in the wrong order, than on the actuall assesment. -Conections use...

8 years ago

ASD

8 years ago

not a goodfuujbfbfj

7 years ago

The correct answer is B, trust me.

6 years ago

AAA

6 years ago

1620*(1/3)=540braids

5 years ago

I use the formula Phi=EAcos(θ) For ΔA1 I got 1880(.00011m^2)cos(65)=.05486N*m^2/C but this is not the answer. Can somebody show how to get to the answer key .0874N*m^2/C? Once I know how I will do the rest for the 2 and 3

5 years ago

bottom, yes

5 years ago

I'm stuck, please help the second question the above question is Find the capacitance of the parallel plates.

5 years ago

I have to use this formula to find Q Q = CΔV, and C = (ε0*A)/d These are what I did but don't know what ε0 is C= (ε0*0.61 m^2 )/.0080m= stuck here. Is there anybody know what to do from here?

5 years ago

(a) path 1 ---V (b) path 2 ---V

5 years ago

I have to answer this question using the question above (a) Vb − Va=V (b) Vc − Vb=V (c) Vd − Vc=V (d) Va − Vd=V

5 years ago

thanks!

5 years ago

how come art never says our score on these? so weird and annoying.

5 years ago

you both were no help! they asked how they do them, not for answers to them! jeez, read something if youre gonna comment on it, its the first sentence

5 years ago

d and a are the correct answers on this. i took the test jusr now and got graded

5 years ago

cbd 🌿

5 years ago

www.webassign.net/katzpse1/38-p-076.png

5 years ago

no one cares about your obsession with anime shut up please

5 years ago

1. D- limited resources prevent producers from making unlimited products 2. C- people must fulfill their needs to survive but they do not need to fulfill their wants... 3. D- choosing options with the greatest benefits to the people 4. D- a failing railro...

5 years ago

focal point is not one of the answer show in the figure on the website. Are you meant point 3 instead?

5 years ago

DANNY IS WRONG I GOT A 2/9

4 years ago

A Complete Bookworm 📚 IS RIGHT 100% TYY

4 years ago

barry is wrong. 5/10!!!

4 years ago

Use the excerpt from Bill Clinton's Remarks on Somalia, October 7, 1993 to answer the question. The excerpt from Clinton's speech indicates that his foreign policy goals primarily focused on? Explain A. containment. B. diplomacy. C. humanitarianism. D. se...

2 years ago

make this copyable

8 months ago