2. (a) During the experiment, if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was vo initially? (b) Now, if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was vo initially? (c) If during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially Fo?
Q: A powerful telescope can observe an object down to about the 30th magnitude in the B-band. To what…
A: Given:- A powerful telescope can observe an object down to about the 30th magnitude in the B-band.…
Q: A loop of wire has the shape shown in the drawing. The top part of the wire is bent into a…
A: Without the picture or specific information about the orientation of the loop, I'll assume that the…
Q: From its nest, a bird flies 119m [27.0 degrees E of S]. It turns and flies another 312m [35.0…
A: To calculate the average speed, total displacement and the average velocity of the bird. Given:First…
Q: Two particles are fixed to an x axis: particle 1 of charge q₁ = 1.66 x 108 Cat x = 22.0 cm and…
A:
Q: A block is projected up a frictionless inclined lane with initial speed vo-8.42 m/s. The angle of…
A:
Q: What is the difference between elastic and inelastic collisions?
A: Elastic Collision:- The Elastic collision is a collision between two objects in which after the…
Q: (a) Calculate the height (in m) of a cliff if it takes 2.21 s for a rock to hit the ground when it…
A:
Q: Consider three point charges at the corners of a triangle, as shown below. Find the resultant force…
A:
Q: What is the friction force when the mass of the block is 20 kg, and the coefficient of friction is…
A: Given that, mass of the block (m) = 20kg Coefficient of friction (μ) = 0.3
Q: Two very large metal parallel plates that are 25 cm apart, oriented perpendicular to a sheet of…
A: Equipotential surface has constant potential. The direction of electric field is perpendicular to…
Q: . Is mixing colored light the same as mixing colored paint? Explain. B. White light is said to be…
A: When all color of the light are mixed we will get a white light which is similar to the mixing of…
Q: A block of mass 700 g is placed at rest on a relaxed vertical spring of length 20 cm which exerts an…
A:
Q: The moons of Jupiter are made of a mixture of rock and ice. made mostly of hydrogen and helium gas.…
A: The moons of Jupiter are made of a mixture of rock and ice. The moons of Jupiter are…
Q: The drawing shows three identical rods (A, B, and C) moving in different planes. A constant magnetic…
A:
Q: 22. A potential of 12 V is applied across a parallel-plate capacitor which is constructed of square…
A: Here k is used for dielectric constant q' for charge induced on the slab ,q for charge on capacitor…
Q: An applied force Fapp acts on block-A as shown. A frictional force between block-A and block-B…
A: (1) From the above DIAGRAM -1 it is given that the surface is frictionless as μ=0 Hence friction on…
Q: An open cylindrical tank 0.30 m in diameter and 0.80 m high partially filled with water is rotated…
A:
Q: In a photoelectric experiment it is found that a stopping potential of 1.00 V is needed to stop all…
A:
Q: A square 59.8 cm on a side is occupied in one corner by a 45.1 μC charge and the other three corners…
A: The length of one sides of the square is 59.8 cm. The charge in one corner is 45.1 μC. The charge in…
Q: A small boat is crossing a lake on a windy day. During some interval of time, the boat undergoes the…
A:
Q: Two charged particles are a distance of 1.72 m from each other. One of the particles has a charge of…
A:
Q: A five-sided object, whose dimensions are shown in the drawing, is placed in a uniform magnetic…
A:
Q: In (Figure 1), each capacitor has C = 4.50 μF and Vab 30.0 V. Figure a b C₁ C₂ CA C₁₂ 1 of 1 Part A…
A:
Q: Light is incident from air onto glass of refractive index nG=1.65 ; calculate the Brewster angle, at…
A:
Q: IP Three charges are placed at the vertices of an equilateral triangle of side a=0.82 m, as shown in…
A:
Q: a. b. Three-point charges, Q₁, Q2, and Q3, are arranged as shown in the figure (→). point A. at…
A: The electric potential due to charge Q at distance r is given by V= KQ/r where k is the dielectric…
Q: rd Three charged particles form the vertices of a triangle as shown in the figure below where 91 = 3…
A:
Q: The figure shows an arrangement in which four disks are suspended by cords. The longer, top cord…
A:
Q: A fish (4 kg) is being yanked vertically upward out of the water and the fishing line breaks. If the…
A:
Q: A certain wire has 8.92x1018 electrons pass a single point every second. The wire has a diameter of…
A: Current density is given by J=I/A I=current=ne/t Since time t=1sec n= no. Of electron A=area of…
Q: The coherence length of a wavetrain is the distance over which the phase constant is the same. (a)…
A: (a) The coherence length of a wavetrain is given by: L = c * Δt where L is the coherence length,…
Q: A parallel-plate air capacitor has a capacitance of 980 pFpF . The charge on each plate is 2.6 μC�C.…
A:
Q: A group of hikers hears an echo 2.60 s after shouting. How far away is the mountain that reflected…
A: Given Data: Time(t)=2.60s Speed of sound (v)=349m/s To find: Distance(d)
Q: The displacement vectors A and B shown in the figure below both have magnitudes of 3.70 m. The…
A: Given, Two displacement vector A→ and B→ , both having magnitude of 3.70 m. The direction of vector…
Q: Problem 22.06. Two conducting rails are placed parallel to one another, in the x-z plane, a distance…
A:
Q: Two speakers A and B, separated by a distance y = 2 meters, blast the same tone at f = 774 Hz. You…
A: a) The difference in the path length traveled by the sound coming from each speaker to you depends…
Q: A parallel-plate capacitor is charged up to a potential Vo with a charge of magnitude Qo on each…
A:
Q: 1. A 0.66-kg object with an initial velocity of 3.30 m/s in the positive x-direction is acted on by…
A: According to guidelines we need to solve only first question kindly repost other questions in the…
Q: An ecologist finds that the number of acres to which an animal confines its motion depends on the…
A: As per given value of question
Q: A uniform electric field exists in the region between two oppositely charged plane parallel plates.…
A:
Q: A negative charge is shot through a small hole as shown with an initial kinetic energy. As it…
A: As given positive and negative charges the direction of electric field will be from positive to…
Q: Q 15 A doctor using 3 MHz ultrasound measures a 6500 Hz frequency shift as the ultrasound reflects…
A: Considering the data, F = 3 MHz ΔF = 6500 Hz Velocity of sound in body = 1540 m/s Density, ρ = 1060…
Q: 5. At point A on the x axis, the electric field created by the +1C charge is (a) zero. (b) directed…
A: 5.) Given, Charge = +1 C Electric field lines from positive charges are always oriented radially…
Q: Find the sound level in dB of 4.57 x 10-2 W/m² ultrasound used in medical diagnostics. dB
A:
Q: A boxer punches a punching bag. The time of impact of the glove and the bag is 0.01 s and the mass…
A: Average force acting on the glove is given by change in momentum per time. So F=(m1v1-m2v2)/t…
Q: When a capacitor is placed in an alternating-current (AC) circuit, the charge on its plates varies…
A: The current flowing through a capacitor is related to the rate of change of charge on its plates,…
Q: A 15-V battery is connected to three capacitors in series. The capacitors have the following…
A:
Q: In the figure the four particles form a square of edge length a = 7.50 cm and have charges q1 = 8.06…
A: Visualize the Problem:
Q: A defibrillator is used during a heart attack to restore the heart to its normal beating pattern. A…
A:
Q: 5) A vibrating string 50.0 cm long is under a tension of 1.00 N. The results from five successive…
A: o solve this problem, we will use the formula for the wave speed: v = sqrt(T/μ) where T is the…
Answer the following question is
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
- Q.3 (a): Discuss completely the construction, working and theory of a GM counter. Explain the various portions of the characteristic curve.Calculate the thickness of Al and Cu required to attenuate narrow, collimated, monochromatic beams of 0.1-MeV and 0.8-MeV gamma rays to: (use appendix A) a. One-half of the incident beam (HVL) b. One-tenth the incident intensity (TVL). Express the answers in cm and in g/cm²A single neutron confined inside a nucleus has a minimum kinetic energy Kmin consider it to be a cube of volume a³. Give your answer to 2 significant figures in units of fm. (fm femtometers = 10 15 m) 20 MeV. Find the size a of the nucleus if we Formulas.pdf (Click here-->)
- Now I advise you that start solving the problem in the order that I ask the questions. Neglect BMS =?,v =?,r =?, left or right the electron masses. 1 1. The mass difference between two isotopes is sometimes just a neutron mass. The spectrometer should separate them very well. For such an isotope combination, the difference in radius should be around 1 cm. That is r, – r, = 1 cm. In order to achieve this, choose a magnetic field with a magnitude in Tesla (maximum magnetic field you can obtain from a conventional magnet is around 2.5 T so be far away from this value) and choose the direction also. Then determine the velocity of isotope you need. Last calculate radius r of a Pb04 smallest isotope. 2. In order to produce this magnetic field, determine the current and number of turns, radius and other parameters of a solenoid you need. Also show how you will position Spectrometer r Eys ?, Bys =?,Ws =? 1 Velocity Selector this solenoid. 1 3. Now in velocity selector region, determine the…Some experiments require calibration of the equipment before the mea- surements can be made. Any random errors in the calibration will usually become Systematic errors in the experiment itself. To illustrate this effect, consider an exper- iment on the Zeeman effect, in which a magnetic field causes a tiny shift in the 4.27. frequency of light given out by an atom. This shift can be measured using a Fabry- Perot interferometer, which consists of two parallel reflecting surfaces a distance d apart (where d is typically a couple of millimeters). To use the interferometer, one must know the distance d; that is, one must calibrate the instrument by measuring d. A convenient way to make this measurement is to send light of an accurately known wavelength A through the interferometer, which produces a series of interfer- reference marks fringes wavelength is sent through a Fabry-Perot interferometer, it pro- Figure 4.3. When light of one duces a pattern of alternating light and dark fringes.…Q.3 (a): Discuss completely the construction, working and theory of a GM counter. Explain the various portions of the characteristic curve. Page 1 of 1
- It is known that a collimator on a gamma camera for low energy 150 kev has a length of 2.5 cm, a hole diameter of 0.25 cm and an attenuation coefficient of 1.91 cm^2 /g. Calculate the percentage (%) change in the minimum thickness of the septal if the collimator length is changed to 3 cm!(b) Assume that a source is detected against a strong background (an example would be the case of mid-infrared observations made from the ground). Assume that the number of counts detected on-source in time, At, is (S + B), and the number of counts detected from the background in the same interval (measured from an adjacent patch of sky) is B. What is the variance on the difference between the two measurements? Hence calculate the significance for a source detection (i.e., signal / standard deviation) and show that in the case of high background relative to the source this can be represented in terms of the source and background count rates (rs and r3, respectively) by: Ts VAt /2 TB S OBEstimate the probability that nuclear reactor-produced electronic antineutrino has an interaction with a proton when traversing the earth. Cross section for antineutrino interacting with a proton is 10 43 cm2, mean earth radius is 6.37x108 cm, and mean mass density of the Earth is 5.52 g/cm. Use 10 decimal places for the answer. Hint: Approximate Earth as iron. Your Answer: Answer
- (7.9 modified) A Geiger-Mueller counting system has a resolving time of 300 us. Find the true rate at which the losses due to this dead time amount to half of all the true events (one could argue that this rate is roughly the maximum rate at which the tube can give reasonably reliable results.) Use both the paralyzable and nonparalyzable models to obtain two different predictions that probably bracket the actual value. 9.There is no limit to the size ahydrogen atom can attain, provided it is free from disruptive outside influences. In fact, radio astronomers have detected radiationfrom large, so-called “Rydberg atoms” in the diffuse hydrogen gasof interstellar space. (a) Find the smallest value of n such that theBohr radius of a single hydrogen atom is greater than 8.0 microns,the size of a typical single-celled organism. (b) Find the wavelength of radiation this atom emits when its electron drops fromlevel n to level n - 1. (c) If the electron drops one more level, fromn - 1 to n - 2, is the emitted wavelength greater than or lessthan the value found in part (b)? Explain.A 20-keV deuteron in a large mirror fusion device has a pitch angle θ of 45 at the midplane, where B = 0.7 T. Compute its Larmor radius.