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Calculate the maximum deceleration of a car that is heading down a 11° slope (one that makes an angle of 11° with the horizontal) under the following road conditions. You may assume that the weight of the car is evenly distributed on all four tires and that the static coefficient of friction is involved that is, the tires are not allowed to slip during the deceleration
(a) on dry concrete m/s2
(b) on wet concrete m/s2
(c) on ice, assuming that µs = 0.100, the same as for shoes on ice m/s2.
a 55.9-kg skateboarder starts out with a speed of 1.83 ms. he does 98.3 j of work on himself by pushing with his feet
Make a drawing of a metal rod that has length 12cm and a total mass of 70g including two metal loops at both ends, which go around two metal poles. find the magnitude of the magnetic field in the region of the rod
A magnetic field is directed perpendicular to the plane of a 0.15-m × 0.30-m rectangular coil consisting of 240 loops of wire. To induce an average emf of –2.5 V in the coil, the magnetic field is increased from 0.1 T to 1.8 T through a time interval..
A woman enters an elevator and stands on a scale. As the elevator begins to move the scale reads her apparent weight to be591 N. As the elevator slows to a stop the scale reads her apparent weight to be 391 N.
Explain how power is created using hydraulics and how a little cylinder on the tractor can raise or lower extreme amounts of implement weight. Explain the system including parts and functions.
Two identical spheres each carry a charge of = - 40.0 µC. The spheres are separated by a distance of 1.00 m. what is the electric force between the spheres
A ball is thrown horizontally from the top of a 65.0 m building and lands 101.0 m from the base of the building. How long is the ball in the air
A certain loudspeaker (assumed to be a point source ) emits 30.0 W of sound power. Calculate the power intercepted by the microphone
a geothermal power plant is supplied with water at a well bottom temperature of 225 degrees c and a pressure of 8 mpa.
A uniform density cube of mass m, side 2b, and center at C is placed on a fixed horizontal cylinder of radius r and center O in Earth's gravitational field. The cube is originally put so that C is centered above O, but it can roll from side to side w..
What power is supplied to the starter motor of a large truck that draws 260 A of current from a 22.5 V battery hookup
what are the magnitude and direction of its acceleration. A potential difference of 80 mV exists between the inner and outer surfaces of the cell membrane. The inner surface is negative relative to the outer surface. How much work is required to ej..
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