B A Q.8. 9/5 Rotational Speed: Decreases E 2003-2023 Chegg Inc. All rights reserved. There is no net charge on the conducting shell. C A particle of mass m moves along a straight path with a speed v defined by the function v = bt2 + c, where b and c are constants and t is time. D An electric dipole is released from rest in a uniform electric field with the orientation shown. 0 She uses the following steps but not in this order. D) The charge is entirely on the surface and it is distributed according to the shape of the object. Complete the following statement: When a glass rod is rubbed with silk cloth, the rod becomes positively charged as. Kinetic energy: Greater for S3 Two uncharged conducting spheres, A and B, are suspended from insulating threads so that they touch each other. How will the spheres be charged, if at all? C A block attached to a spring of negligible mass undergoes simple harmonic motion on a frictionless surface. A rigid electric dipole is free to move in the electric field represented in the figure. According to Coulombs law, these two like 0000004648 00000 n A block of mass of M 2 is attached to the free end of the rope. The charges begin to leak from both the spheres at a constant rate. B T Two equally charged insulating balls each weigh 0.42 g and hang from a common point by identical threads 35 cm long. I, II, and III The spring is attached at its other end at point P to the free end of a rigid massless arm of length l.The arm is hinged at its other end and rotates in a circular path at a constant angular 0000011215 00000 n Verify directly that the Euler equations for a rigid body are equivalent to the equations d F = {F, H}, dt where { , } is the rigid body Poisson bracket and H is the rigid body Hamiltonian. B What happens to its angular momentum as it moves from point X to point Y ? the following configurations of electric charges located at the vertices of an equilateral triangle. Then : Which of the following represents a correct application of Gauss' Law for r>b? Which one of the following statements is true concerning the electrostatic charge on a conductor? 3 s, The Planet X has a mass M, radius R, and no atmosphere. I and II only E) It is constant between the plates except near the edges. B amplitude of the motion were increased Sphere A collide ; Two charged pith balls are suspended on very light 120cm strings.Each has a mass of 10g. E/2 As a result, the spheres approach each other with a velocity v. Then v varies as a function of the distance x between the spheres, as : (1) 1 v x 2 (2) v x. At which of the following times is the upward velocity of the object the greatest? Two identical charged spheres suspended from a common point by two massless strings of lengths , are initially at a distance d d apart because of their mutual repulsion. The charges begin to leak from the both the sphere at a constant rate. What is the magnitude F of the net force on the particle at time t = t1 ? II Linear momentum of the ball Experts are tested by Chegg as specialists in their subject area. 0000012268 00000 n 14. Sphere C is first touched to A, then to B and finally removed. x = 48 m The charges begin to leak from both the spheres at a constant rate. Then. identify the statements which are correct about trademark; is villanova hockey d1; remedios caseros para aumentar la fertilidad en los hombres two identical charged spheres suspended from a common point by two massless strings of lengths L, are initially at a distance d (d.. Two charges of equal magnitudes and at a distance r exert a force F on each other. (No pinned down pivot point!) E B 6T, When a negatively charged rod is brought near, but does not touch, the initially uncharged electroscope shown above, the leaves spring apart (I). D) negative charges are transferred from the fur to the rod. NEET 2016 Phase 1. A third identical conducting sphere C is uncharged. D E 1. If they are far apart the capacitance is proportional to: Solution: The capacitance between two objects is, by definition, C = Q / V, where Q and -Q are charges placed on the two objects and V is the difference of potentials between the two objects produced by the two charges. angular momentum: Greater for S3, A spaceship of mass m is returning to the Earth with its engine turned off. Two identical pendulums A and B are suspended from the same point. When the displacement of the block is half the maximum value, its Instantaneous kinetic energy is, The radius of the Earth is approximately 6,000 kilometers. What is the direction of the electric field at point C? (a) Explain in detail why both these swings happen. Three identical point charges, Q, are placed at the vertices of an equilateral triangle as shown in the figure. C 16 N E A newly discovered planet has three times the mass and five times the radius of Earth. 25/3 A Gaussian surface of radius r with r < R is used to calculate the magnitude of the electric field E at a distance r from the center of the sphere. The strings make an angle of `30^@` with each other. Toward the bottom of the page Assuming no losses to friction, how high does it get before it stops? For two identical spheres one can cite the pioneering work by Reed and Morrison (1976) that makes use of the bipolar coordi- nates but discards the allowed rotations of the spheres. It is important for the support to be quite rigid. E In air, . maine football team england. The platform rotates around a fixed pivot at its center with negligible friction and an initial angular velocity w. A child of mass m runs tangentially with speed v and jumps on the outer edge of the platform. Two metallic spheres each of mass M are suspended by two strings each of length L. the distance One end of a uniform rod of mass m and cross-sectional area A is suspended from a rigid support and In figure, two equal positive point charges q1 = q2 = 2.0C interact with a third . B) B {there is a square pictured, it is the vector pointing SW from NE corner on the neg line}. A negatively charged rod is brought close to the sphere but does not touch the sphere. Two identical charged spheres suspended from a common point by two massless strings of lengths H, are initially at a distance d(d H) apart because of their mutual repulsion . For small angles Tane-Sine-. The meterstick is initially at rest on a horizontal surface and free to move without friction. A block of mass m2 is attached to the free . When the block is in equilibrium, each spring is stretched an additional 0.15 meter. Two identical charged spheres suspended from a common point by two massless strings of length l are initially a distance d ( d << l) apart because of their mutual repulsion. At x = A, its displacement is at a maximum. As shown above, two particles, each of charge +Q, are fixed at opposite corners of a square that lies in the plane of the page. 9. Rotational Speed: Stays the same Two identical conducting spheres carry charges of +5.0 C and 1.0 C, respectively. The electric field for r>R2 is, A simple pendulum of length L, whose bob has mass m, oscillates with a period T. If the bob is replaced by one of mass 4m, the period of oscillation is D It has a period of 2.0 seconds. A cylinder whose axis is perpendicular to the wire and passes through the wire The block oscillates along the x axis with simple harmonic motion of amplitude A. 1 cm, An ideal spring with spring constant k is cut in half. What is the direction of the force exerted on the electron once it has entered the field? 1 Calculate the magnitude of the charge on sphere Y. Two identical charged spheres are suspended by strings of equal length. D One. Kinetic energy: The same for both k/2, A 5 kg object suspended on a spring oscillates such that its position x as a function of time is given by x=0.8 m cos(2t). 4 B. The charges begin to leak from both the spheres at a constant rate. Two identical charged spheres suspended form a common point by two massless strings of lengths l, are initially at a distance d(d gt gt l) apart because of their mutual repulsion. directly proportional to r2 (b) The sphere is grounded, allowing electrons to be attracted from the earth's ample supply. Q. The positively charged proton will accelerate into the page. The time it takes for the moon to orbit Jupiter (6GM/(R))1/2 A An object of mass m is located a distance 2R above the surface of planet X, as shown. Pendulum 2 is identical to pendulum 1, but it is displaced by a very small angle 2, is released from rest, and oscillates with a period T2, where angle 1 is greater than angle 2. A student initially stands on a circular platform that is free to rotate without friction about its center. x = 5cos(3t) Dielectric constant of the liquid is (density of material of spheres is 1600 kg/m3) (a) K = 6 (b) K = 2 (c) K = 7 (d) K = 3 11. 0.25 s, Assuming air resistance is negligible, how does a diver doing flips off a diving board change rotational speed in midair? the person's weight is greater than at the surface, the person's weight is less than at the surface, The acceleration due to gravity on the surface of the Moon is about 1/6 of that on the surface of Earth. The total electric flux through any imaginary concentric spherical shell of radius r that encloses S is Which of the following graphs shows the kinetic energy K of the particle as a function of time ? C C A comet moves in the Sun's gravitational field, following the path shown above. B 34.Two identical rods are connected between two One of, them is at 100C containing water and another is 0C containing ice. Try BYJUS free classes today! A particle with charge $-3.00 \mu \mathrm{C}$ and mass $2.00 \times 10^{-16} \mathrm{~kg}$ is fired from the positive plate toward the negative plate with an initial speed of $2.00 \times 10^{6} \mathrm{~m} / \mathrm{s}$. While a negatively charged rod is held near, but not touching sphere A, someone moves ball B away from A. A negatively charged rubber rod is brought close to, but does not make contact with, sphere X. Two identical charged spheres suspended from a common point by two massless strings of length are initially a distance apart because of their mutual repulsion. The charges begin to leak from both the spheres at a constant rate. Following are the two statements regarding the origin of life - (a) The earliest organisms that appeared on the earth we . III only C Which one of the following statements is true concerning the strength of the electric field between two oppositely charged parallel plates? Consider Earth to be stationary, and the moon as orbiting Earth in a circle of radius R. If the masses of Earth and the Moon are ME and Mm, respectively, which of the following best represents the total mechanical energy of the Earth-Moon system? What is the orbital radius of satellite Y ? Two identical charged spheres suspended from a common point by two massless strings of lengths H, are initially at a distance d(d< < H) apart because of their mutual repulsion. Measure the mass (m) of each of the two identical pith balls using a physical balance. 4: Charging by induction, using a ground connection. "( U8;a4`\|^ xuMy@n Df^4PEcWR%dy}j:]]Y?/7<4s#\zIL1~z/[D;%:Q|To[l6vInk*Sk}t{5zR4|"6"@o<50OWyRe_Q*PlP)7? A Question 28. What is the change in potential energy when the spring is stretched 2 meters from its equilibrium position? B Take a glass rod and rub it with a silk cloth to induce charge on the rod. E No net charge and no polarization C Two positive point charges Q and 2Q are separated by a distance R. If the charge Q experiences a force of magnitude F when the separation is R, what is the magnitude of the force on the charge 2Q when the separation is 2R ? ET. mg/k, The velocity of a particle moving along the x axis is given as a function of time by the expression v=3t2-2t+4, where v is in meters per second and t is in seconds. To the left For the intermediate-level course, the Fifth Edition of this widely used text takes modern physics textbooks to a higher level. D There is no net charge on the conducting shell. C Moment of Inertia Formula. A A pendulum consists of a small spherical mass suspended from a rigid support by a length of thread o; 6. angular momentum: Less for S3 Two identical charged spheres are suspended by strings of equal lengths. respectively, and are separated by a distance d (much greater than the radii of the spheres) as shown above. x = 16m long, solid rod B 0000008712 00000 n The charges begin to leak from both the spheres at a constant rate. D Publisher's summary: Confraternities were the most common form of organized religious life in medieval and early modern Europe. The period of oscillation is, A circular platform (merry go round) has a radius R and rotational inertia I. x = 32 m Toward the top of the page LB>LA and KB>KA The distances RA and RB, are the maximum and minimum distances, respectively, of the satellite from the Earth's center. Two uniformely charged spheres are suspended by strings of length L from vertically adjustable supports. A square piece of plywood on a horizontal tabletop is subjected to the two horizontal forces shown above right. A positively charged solid conducting sphere is contained within a negatively charged conducting spherical shell as shown. string were replaced by one about 0.25 meter long How far from the equilibrium position is the block when the kinetic energy of the block is three times the potential energy of the system? E is : attached to the freeend of the rope. When suspended in a liquid of density .4g/cc the angle remains the same. You're making this way harder than it needs to be. If the magnitude of the electric field at point T is ET, which of the following best represents the magnitude of the electric field at point S? B Two identical pith balls are charged by rubbing against each other. Which of the following represents a correct application of Gauss' Law for rKA, A block of mass m is attached to a spring and placed on an inclined plane. Ping Sigma 2 Adjustable Putter, Real Madrid Players On Loan To Arsenal, E LB:Fgbj3dBe)b0@\"\L}}~"yl K J%: g%'WG;Qidl$[`ns$gvl:'ra%W%@r37lj7?0iowaRdsit K#4:_U+UCkmG/l"3)WKw5C1{S"A{])vfS 6W(wQ%0GCv-fQqj|TTb`R`]w*3YM&.xB> U e-"X{'q0l4}9[L06M6[)pcZWD5>aQH_v"I,Fh*]rkAuBjc0%E@EF8%d7 405 0 obj << /Linearized 1 /O 407 /H [ 1068 1511 ] /L 432932 /E 13550 /N 68 /T 424713 >> endobj xref 405 33 0000000016 00000 n The charges begin to leak from the both the sphere at a constant rate. The electric field is determined by Gauss' Law at a distance r from the center of spherical shell. x = 5cos(3t) Two identical charged particles are suspended in air by strings of equal length. Include dimension lines in showing the variations. The original positions of the spheres are indicated, before the plastic is placed between them. D E Two identical charged spheres suspended in air by strings of equal lengths makes angle 30 degree, which is same when they are suspended in liquid with density 0.8 g/cc. B When the electroscope is then touched with a finger, the leaves collapse (II). Positive D 6 m/s2, A block of mass m on a horizontal surface is attached to one end of a horizontal spring. help of an insulated thread. A (mgsin(angle)/k)1/2 Objects B and C also attract one another, but objects A and C repel one another. C The other half is given a charge + q also uniformly distributed along its arc. C The electric flux through the closed cylindrical shell is, A simple pendulum consists of a l.0 kilogram brass bob on a string about 1.0 meter long. Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of -2.0 C; sphere B carries a charge of -6.0 C; and sphere C carries a charge of +4.0 C. Complete the following statement: The magnitude of the electric field at a point in space does not depend upon. cube Problem: Two identical metal spheres A and B are on their insulator mountings, both initially neutral. The potential energy of the spring is at a minimum at x = 0. B (b) Next the spheres are moved away from each other. A If density of the material of the sphere is 1.6gcm -3, the dielectric constant of the liquid is (a) 1 (b) 4 (c) 3 (d) 2 electrostatics jee 1 Answer MCQ (Single Correct Answer) + 4. 2 and 3 only Answer 1. independent of r D At equilibrium both strings make the same angle with the vertical. When the moon is at point A, its distance from the center of the planet is rA and its speed is vo . The speed of the center of mass of the stick-arrow system after the arrow strikes is given by which of the following expressions? The charges begins to leak from both the spheres at a constant rate. E Four point charges, each of the same magnitude, with varying signs are arranged at the corners of a square as shown. There is zero net force exerted on it In your explanation, include clear diagrams. Spheres B and C are then touched and separated. A sphere of mass M rolls down an incline as shown. A quantity with subscript A or B denotes the instantaneous value of the quantity at the position A or B, respectively. Two pith balls each of mass m and charge q are suspended from a point by weightless threads of length l. Both the threads are separated by an angle with the vertical. 5/9 A diffraction grating produces a first-order maximum at an angle of 25.025.0\degree25.0, at what angle will a second-order maximum be produced? zero. Two identical charged spheres suspended from a common point by two massless strings of length l are initially a distance d (d < < l) apart because of their mutual repulsion. The conductor shown is given a negative charge that spreads over its surface. Two small charged spheres (S1 and S2) are suspended from a common point P by cords of equal length l, as shown in the figure below, and make small angles, a1 and a2, with the vertical through P. The charge on S1 is Q and the charge on S2 is 2Q (same polarity).
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