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a. Make a drawing of the electric field lines around

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Question a. Make a drawing of the electric field lines around a positive charge, then make a second drawing of the electric field lines around a negative charge.b. What is the mathematical equation for the electric force between two charges? Identify each variable.c. Describe the direction of the electric force between two opposite charges, between two like charges, and when a charge is in an electric field.d. A metal sphere is neutral because it has an equal number of protons and electrons. Draw how the charges in the sphere are redistributed when a negatively charged rod is brought near it. (1 point)

A synthesizer produces two tones, one at 262 Hz and

Question A synthesizer produces two tones, one at 262 Hz and one at 1047 Hz. What can you say about the sound waves produced by these two frequencies?

The diagram shows an object placed 10 cm to the

Question The diagram shows an object placed 10 cm to the left if a converging lens. The focal length is 15 cm. The question is can you place a screen to the right of the lens to see the image in focus? If so, what is the distance from the lens to that screen. If not, why not? ATTACHMENT PREVIEW Download attachment qa_attachment_1565318405178.jpg

A tank circuit in a radio transmitter is a series

Question A tank circuit in a radio transmitter is a series RCL circuit connected to an antenna. The antenna broadcasts radio signals at the resonant frequency of the tank circuit. Suppose that a certain tank circuit in a shortwave radio transmitter has a fixed capacitance of 1.3 x 10-11 F and a variable inductance. If the antenna is intended to broadcast radio signals ranging in frequency from 5.0 MHz to 9.3 MHz, find the (a) minimum and (b) maximum inductance of the tank circuit.

Two masses, 1.3 kg and 2.4 kg, are tied together

Question Two masses, 1.3 kg and 2.4 kg, are tied together with a string. The string has negligible mass and does not stretch. The masses are pulled on a frictionless horizontal surface with a force of 8.6 N [W](a) Determine the acceleration of the masses.(b) Calculate the force action on the 1.3 kg mass.Everything needs to be stated with proper explanation, definitions and work done.

following problem ATTACHMENT PREVIEW Download attachment 345.png Question: The following

Question following problem ATTACHMENT PREVIEW Download attachment 345.png Question: The following atomic masses may be useful for this question: 246 Am :246.069775 u. 95 H :1.007825 u. n :1.008665 u. Part 1) What is the mass defect of Americium 246? Make sure you keep all the significant figures. m = u Part 2) Americium-246 undergoes beta (B-) decay. Select all the products of this decay from the list below. 0 1. 0 2. he 0 3. a 1 244 Cm 0 4. 96 246 Cm 0 5. 96 0 6. 244 Pm . 94 246 Pm 0 7. 94 244 Am 8. 95 Part 3) The half life of Americium-246 is 39 minutes. After 265 minutes how much Americium-246 would be left in a sample that initially contained mi = 14.9 grams of Americium-246? mf = g

A spacecraft requires a force of 1.7 X 104 N

Question A spacecraft requires a force of 1.7 X 104 N to accelerate in deep space at 6.9 m/s2How much force is required to accelerate at the same rate upward from Earth?Please explain all steps.

Explain the agonist to antagonist spectrum

Question Explain the agonist to antagonist spectrum

An alternating voltage of maximum value 100 V is applied

Question An alternating voltage of maximum value 100 V is applied to a lamp. Which of the following direct voltages, if applied to the lamp, would cause the lamp to light with the same brilliance?(a) 100 V (b) 63.7 V (c) 70.7 V (d) 141.4 V

A battery is used to drive a circuit. After a

Question A battery is used to drive a circuit. After a certain amount of time, the current is zero amperes. When the same circuit is driven by an ac generator, the current is non-zero and alternates. Which combination of elements is most likely to comprise the circuit?a) Inductors onlyb) Capacitors onlyc) A combination of inductors and resistorsd) A combination of inductors and capacitorse) Resistors onlyanswer is capacitors. why?

Thank you in advance!Calculate the binding energy per nucleon of

Question Thank you in advance!Calculate the binding energy per nucleon of the Boron isotope B-10 which has a nuclear mass of 10.012937 u. Remember to identity all of your data, write the equation, and show your work. Mass of Proton: 1.007825 u Mass of Neutron: 1.008665 u 1 u = 931.5 MeV

Main question: Suppose that you have a B field with

Question Main question: Suppose that you have a B field with some magnetic field lines. Then you bring a piece of ferromagnetic material. How that will change the magnetic field lines? Sketch the new field lines.I am trying to make Hall probe that is 10,000 times more sensitive than the original. It has already been agreed that using ferromagnetic material would increase the strength of the overall field and lead to a more sensitive Hall probe. My question is, in the sketch of the probe itself, how will the external magnetic field be affected? My original answer was that it wouldn’t be any different as the ferromagnetic material will exude its own field parallel to the external field. The external field shouldn’t change. That answer is apparently false. How will the external magnetic field lines look after a ferromagnetic material is placed. I have attached a photo of my wrong answer for reference. By is apparently wrong. ATTACHMENT PREVIEW Download attachment Sketch.png

A beam of electrons is passed through a 14.37 nm

Question A beam of electrons is passed through a 14.37 nm slit and produces a diffraction pattern on a screen 1.0m away. The width of the first bright fringe on either side of the central maximum is 7.0 cm. At what speed are the electrons sent through?

Can someone please explain ohm’s law theoretically? Thanks

Question Can someone please explain ohm’s law theoretically? Thanks

1.Which of the following statements is true?Select one:a. The energy

Question 1.Which of the following statements is true?Select one:a. The energy of electrons are always discreteb. The energy of bound electrons are continuousc. The energy of free electrons are discreted. The energy of bound electrons are discrete2.Which of the following statements is required within the Pauli exclusion principle?Select one:a. Only two electrons can be in any particular shell of an atomb. No two electrons in a collection of atoms can have the exact same set of quantum numbersc. Each electron in an atom must have the same ml valued. Each electron in an atom must have the same n valuee. No electron in an atom can have the same set of quantum numbers as any other electron in that atom3.In a double-slit experiment, rays from the two slits that reach the second maximum on one side of the central maximum travel distances that differ by …Select one:a. λb. λ/2c. λ/4d. 2λ4.An electron beam is passed through a double slit type of apparatus and an interference pattern is observed on the screen behind it. The electron beam is reduced in intensity until only one electron at a time passes through the slits. Is the interference pattern still observable?Select one:a. Yes, If the experiment is left for some time until sufficient statistics are accumulated, an interference pattern can be seenb. No, the effect at low intensity is only observed with photons, not with electronsc. No, in order for interference to be observed, you need to have electrons going simultaneously through both slits5.By what amount does alpha decay change the atomic number of an element?Select one:a. -2 unitsb.  2 unitsc. -4 unitsd.  4 units

1.What defines the mass number of an element?Select one:a. Number

Question 1.What defines the mass number of an element?Select one:a. Number of nucleons in the nucleusb. Number of protons in the nucleusc. Total mass of the protons and neutrons in the nucleusd. Number of neutrons in the nucleuse. Total mass of the protons in the nucleus2.Which one statement below regarding Young’s double-slit experiment is false?Select one:a. The light from the two slits starts in phase.b. The path difference is dsinθ where d is the separation of the two slits.c. We expect destructive interference at the centre of the interference pattern.d. The experiment demonstrates the wave nature of light.3.What is the average binding energy per nucleon for Argon-40 (A=40, Z = 18) in MeV/nucleon? Note – keep 4 significant figures.4.Light of wavelength 676 nm falls on two slits and produces an interference pattern in which the fourth-order fringe is 47.9 mm from the central fringe on a screen 1.49 m away. What is the separation of the two slits – in microns?5.What is the magnitude of the momentum of an electron (in kg m s-1) with a de Broglie wavelength of 13.1 nm?

A mass 6.8 kg of water is vaporized completely. What

Question A mass 6.8 kg of water is vaporized completely. What volume would that water vapor occupy if the temperature is 38.7 °C and the pressure 90200 Pa? 

ACTIVITYTwo explorers are at the edge of a river of

Question ACTIVITYTwo explorers are at the edge of a river of width D, each of themIt has a boat with an engine that moves them at the same speed ?. EverySpeedboat is designated as A and B (see figure). The river current has aconstant speed jQuery22405850059726865706_1565402620646í? in the direction indicated in the figure.The two explorers believe it will take less time to complete a tourround trip (2D distance), no matter which direction you choose.1. Route A (perpendicular to the river): Cross the river to a point opposite thestarting point, so that the speed vector of the boat is alwaysperpendicular to the velocity vector ??í?.2. Route B (parallel to the river): Travel the round trip distance D, butfollowing the direction of the river current and then return in the directionopposite to the current.Prediction:Which of the two cases would you choose and why?__________________________________________________________________________________________________________________________________Analysis:Simplify an equation that shows the ratio ta / tb.If the speed of the boats is equal to that of the river, does the ratio ta / tb change?Argue your answer.If the speed of the boats is less than that of the river, do they change the ratio ta / tb?Argue your answer.

What is the average kinetic energy of 4.79 mol of

Question What is the average kinetic energy of 4.79 mol of a gas of molar mass 33 g/mol and rms speed 567 m/s?

What is the volume flow rate of water from the

Question What is the volume flow rate of water from the garden hose into the tank? (Hint: What is the flow rate out of the tank?) Let h1 = 0.35mLet h2 = 0.22mr = 1.5 mv= 2.54 m/sQ = πr2v

How long (in s) will it take a sound wave

Question How long (in s) will it take a sound wave to travel through 1500. m at 25.0 C

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