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Figure 4.5 shows a force
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- The starship Enterprise has its tractor beam locked onto some valuable debris and is trying to pull it toward the ship. A Klingon battle cruiser and a Romulan warbird are also trying to recover the item by pulling the debris with their tractor beams as shown in Figure P5.25. a. Given the following magnitudes of the tractor beam forces, find the net force experienced by the debris: FEnt = 7.59 106 N, FRom = 2.53 106 N, and FKling = 8.97 105 N. b. If the debris has a mass of 2549 kg, what is the net acceleration of the debris? FIGURE P5.25arrow_forwardWhy is the following situation impossible? A book sits on an inclined plane on the surface of the Earth. The angle of the plane with the horizontal is 60.0. The coefficient of kinetic friction between the book and the plane of 0.300. At time t = 0, the book is released from rest. The book then slides through a distance of 1.00 m, measured along the plane, in a time interval of 0.483 s.arrow_forwardA box of mass m=4.00 kg is pressed against the ceiling of a room by an upward vertical force F-> =66.0ȷ^ N as shown in the figure. Assume that the magnitude of gravitational acceleration is g-> =10.0ȷ^ m/s2. Determine the normal force N-> that the roof exerts on the box. (In the alternatives below, consider j =ȷ^). Options are shown bellow:arrow_forward
- In the Bohr model of the hydrogen atom, an electron (mass m=9.1 x 10^-31 kg) orbits a proton at a distance of 5.3 x 10^-11 m. The proton pulls on the electron with an electric force of 8.2 x 10^-8 N. How many revolutions per second does the electron make? Can you please make the solution detailed as this is a new topic I had to self-teach myself due to the peculiar circumstances, which is difficult for me. Thank you :)arrow_forwardA mysterious force acts on all particles along a particular line and always points towards a particular point P on the line. The magnitude of the force on a particle increases as the cube of the distance from that point, that is, F∝ r3, if the distance from the P to the position of the particle is r. It has been determined that the constant of proportionality is 0.23 N/m3, i.e. the magnitude of the force on a particle can be written as 0.23r3, when the particle is at a distance r from the force center. Find the magnitude of the potential energy, in joules, of a particle subjected to this force when the particle is at a distance 0.21 m from point P assuming the potential energy to be zero when the particle is at P. PE= ?arrow_forwardTarzan, who weighs 820 N, swings from a cliff at the end of a 20.0 m vine that hangs from a high tree limb and initially makes an angle of 22.0 with the vertical. Assume that an x axis extends horizontally away from the cliff edge and a y axis extends upward. Immediately after Tarzan steps off the cliff, the tension in the vine is 760 N. Just then, what are (a) the force on him from the vine in unit-vector notation and the net force on him (b) in unit-vector notation and as (c) a magnitude and (d) an angle relative to the positive direction of the x axis? What are the (e) magnitude and (f) angle of Tarzan’s acceleration just then?arrow_forward
- A mule is harnessed to a sled having a mass of 201 kg, including supplies. The mule must exert a force exceeding 1270 N at an angle of 30.3° (above the horizontal) in order to get the sled moving. Treat the sled as a point as a particle. a) Calculate the normal force (in N) on the sled when the magnitude of the applied force is 1270 N. (Enter the magnitude.) N (b) Find the coefficient of static friction between the sled and the ground beneath it. (c) Find the static friction force (in N) when the mule is exerting a force of 6.35 ✕ 102 N on the sled at the same angle. (Enter the magnitude.) Narrow_forwardYou are trying to move a light fixture into an apartment. There are hooks in the elevator so you hang the fixture on a hook with a chain. You don't want the fixture to touch the walls, so you attach a rope to the side that pulls horizontally as shown, keeping the fixture stationary with respect to the elevator. Note theta =38∘. As the elevator ascends vertically, the magnitude of the tension force in the chain from the elevator on the fixture as a function of the vertical position of the elevator, y, is Fcf(y)=F_0*e^-y/y1 where F_0=167 N and y1=3.3 m. Using the fixture as your system, if the elevator goes from y=0 to y=5.94m, what is the work done by the tension force in the chain on the fixture?arrow_forwardA cooler (mass 3 kg) is initially at rest on a horizontal floor. It is then pushed in a straight line for 1.5 m by a small child who exerts a horizontal force with magnitude 37.5 N.arrow_forward
- A box of mass m1=5.60 kg rests on a second box of mass m2=13.0 kg. Both are on the floor of an elevator that goes up with constant acceleration of magnitude a=4.90 m/s2, as illustrated in the figure. Assume that the magnitude of gravitational acceleration is g=10.0 m/s2. What is the magnitude of the contact force between the two boxes?arrow_forwardSuppose that the 1kg standard body accelerates at 4m/s² at 160° from the +x-axis, owing two forces, one of which is F=(2.5)i+(4.6)j. What is the other force (a)in unit vector notation (b)as a magnitude and directionarrow_forwardA chandelier hangs h = 0.74 m down from two chains of equal length. The chains are separated from one another by a length L = 0.85 m at the ceiling. The chandelier has a mass of m = 28 kg. What is the angle, θ in degrees, between one of the chains and the vertical where it contacts the chandelier?arrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning