OC userin Physics·4 May 2019A 1.9-kg particle moving along the x axis has a velocity of + 1.2 m/s as it passes through the origin. It is subjected to a single force, Fx, that varies with position, as shown below. What is the kinetic energy of the particle as it passes through the origin? J How much fork is done by the force as the particle moves from x = 0.0 m to x = 4.0 m? J What is the speed of the particle when it is at x = 4.0 m? m/s
OC userin Physics·17 Apr 2019 Determine the distance from lens 1tothe final image for the system shown in the figure. d =________cm What is the magnification ofthisimage? m =______ Determine the distance from lens 1 tothe final image for the system shown in the figure . d =________cm What is the magnification of thisimage?m =______
OC userin Physics·12 Nov 2019for the below diagrams determine which circuitshave aninducedcurrent ( a light up light bulb). assume the light bulb'scan beapproximated by a simple circular loop of wire. explainyourreasoning. a) ideal cylinder magnet being rotated around its axis b. rotating the entire circuit around the idealcylindermagnet's center axis. the magnet is kept at rest
OC userin Physics·6 Oct 2019for the below diagrams determine which circuitshave aninducedcurrent ( a light up light bulb). assume the light bulb'scan beapproximated by a simple circular loop of wire. explainyourreasoning. a. revolving the circuit around the ideal cylindermagnet'scenter axis. b. moving the circuit directly toward the idealcylindermagnet
OC userin Physics·27 May 2019A horizontal board weighing 208.0 Nis supported at points Aand B in the figure below. The plankserves as a platform for apainter, who weighs 636.0 N. Find the maximum distance D,suchthat the plank will not tip, no matter where the painterstands.(Let L = 4.20 m.)_______________ m
OC userin Physics·2 Feb 2019A small ferryboat is 4.00 m wide and 6.00 m long. When aloadedtruck pulls onto it, the boat sinks an additional 5.00 cminto the river. What is the weight of thetruck?Your response is off by a multiple often. N
OC userin Physics·2 Jun 2019A rocket is fired straight up throughthe atmosphere from the SouthPole, burning out at an altitude of248 km when traveling at 5.1km/s. (a) What maximum distance from Earth'ssurface does it travelbefore falling back to Earth?1Your response differs from the correct answerby 10% to 100%.kmWill rate life-saver for anyone who can help me! Thanksinadvance
OC userin Physics·20 Nov 2019For two resistors shown in Figure 17.12, rank the currents atpointsa through f from largest to smallest.1 Ia =Ib >Ie =If >Ic =IdIa= Ib >Ic =Id >Ie =If Ie=If > Ic=Id > Ia=IbI know the answer is the second one. But I don't know why, canyouplease explain it to me. Thank you!!
OC userin Physics·21 Apr 20201. Suppose you had a small toy rocket suspended by acable,like the diagram below. When you fire the rocket, gases areejected(expelled) from the nozzle on the back. Assuming this will behave in the same general way thatyourballistic pendulum did, please draw and describe in detail howyouwould determine the velocity of the ejected gases (not therocket,the gases). [This is one of the early experiments conductedbyRobert Goddart, father of modern rocketry.] 2. You can determine the height h in two ways: one bymeasuringit directly, and one by measuring r and θ and using the formulah=(1-cosÏ). Which method will give youmore accurate, and precise,results, and why?
OC userin Physics·20 Nov 2019The figure shows an iron ball suspended by thread of negligiblemassfrom an upright cylinder that floats partially submerged inwater.The cylinder has a height of 6.80 cm, a face area of12.0cm2 on the top and bottom, and a density of0.280g/cm3, and 2.30 cm of its height is above thewatersurface. The water has a density of 1000 kg/m3, andtheiron has a density of 7900 kg/m3. What is theradiusr of the iron ball? Thanks :)
OC userin Physics·23 Jun 2019QuestionDetails:four identical charged particles (Q=+20 micro coulomb) arelocatedon he corners of a rectangle as shown in the figure. Thedimensionsof the rectangle are L= 50 cm and W = 20cm. Calculate themagnitudeand direction of the total electric force exerted on thecharge atthe lower left corner by the other 3 charges.
OC userin Physics·3 May 2019A small mirror is attached to a vertical wall, and it hangsadistance of 1.56 m above the floor. The mirror is facing dueeast,and a ray of sunlight strikes the mirror early in the morningandthen again later in the morning. The incident and reflectedrayslie in a plane that is perpendicular to both the wall andthefloor. Early in the morning, the reflected ray strikes the floorata distance of 3.35 m from the base of the wall. Later on inthemorning, the ray is observed to strike the floor at a distanceof1.27 m from the wall. The earth rotates at a rate of 15.0°perhour. How much time (in hours) has elapsed between thetwoobservations? Please Help
OC userin Physics·25 Jul 2019A small mirror is attached to a vertical wall, and it hangsadistance of 1.82 m above the floor. The mirror is facing dueeast,and a ray of sunlight strikes the mirror early in the morningandthen again later in the morning. The incident and reflectedrayslie in a plane that is perpendicular to both the wall andthefloor. Early in the morning, the reflected ray strikes the floorata distance of 3.14 m from the base of the wall. Later on inthemorning, the ray is observed to strike the floor at a distanceof1.34 m from the wall. The earth rotates at a rate of 15.0°perhour. How much time (in hours) has elapsed between thetwoobservations?
OC userin Physics·15 Mar 2019A wire of length (L) and cross-sectional area (A) hasresistance(R.) What will be the resistance R(resistance) of the wire if itisstretched to twice its original length? Assume that the densityandresistivity of the material do not change when the wireisstretched.Express your answer in terms of the wire's original resistance (R.)
OC userin Physics·19 Sep 2019 Question Details:The figure shows a uniform rod whose length is L andmass is M pivotedat the top. The rod, which is initially at rest, isstruck by aparticle whose mass is m ata point x =0.9L below the pivot. Assume thatthe particle sticks to therod. What must be thespeed v ofthe particle so that following the collision the maximumanglebetween the rod and the vertical is 90°? (Use gforacceleration due to gravity and L, M, and m asnecessary.)