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Maria throws Jackson a life preserver attached to a rope. Jackson's mass is 235 kg.
(a) If Maria pulls Jackson upward with an acceleration of 3.5 m/s^2, how much tension is in the rope?
(b) After the initial acceleration, she continues pulling him upward with a constant velocity. What is the Net Force on Jackson?
generator has a terminal voltage of 115 V when it delivers 18.0 A, alculate the emf (e m f) and the internal resistance (r) of the generator
A 10 m platform diver during his diving can increase his rotation rate from an initial rate of 1.2 rev/s to a maximum of 3.1 rev/s. what is his moment of inertia at his maximum rotation rate
Ginny's boat weighs 200 N and travels an unknown distance. If the boat does 2200 joules of work, how far does the boat travel
A speedboat starts from rest and accelerates at +2.01 m/s2 for 7.40 s. What is the velocity of the boat at t = 21.8 s
Imagine that we connect a formula36.mml lightbulb and an formula37.mml lightbulb in parallel and connect the set to a 19-V battery
Two blocks are in contact on a frictionless table. A horizontal force F is applied to m1. If m1 = 1.66 kg, m2 = 3.72 kg, and F = 6.25 N, find the magnitude of the force between the two blocks
A scaffold of mass 43 kg and length 7.0 m is supported in a horizontal position by a vertical cable at each end. What is the tension in the cable closer to the painter
A 48000-kg space probe is traveling at a speed of 12000 m/s through deep space. What is the final speed of the probe
monochromatic light strikes a diffraction grating at normal incidence before illuminating a screen 2.10m away. find the distance between the two second-order maxima
Using Lorentz Law: You are given a charge moving between two parallel plates. Find the current (I) of a loop given a straight wire
Because of the cramped space under the hood, you'll need to pull at an angle of 105 with respect to the wrench shaft. Illustrate with what force must you pull?
A group of students are camping in the middle of the forest on a very dark night. Their torch batteries went flat hours ago. find the speed of the unidentified noisy object
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