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you are a poor student with an old car that has bald ties. you are traveling at 60 miles/hour and you slam on the brakes (i.e., your wheels are no longer turning). assume there is a layer of pure water 0.1 mm thick between your tires and the road, i.e, the rubber is not meeting the road. assume each of your tires contacts the water layer over a rectangle 10cm wide and 15 cm long. how much braking force (in Ibs) can you expect?
q1. while a roofer is working on a roof that slants at 39.0 degrees above the horizontal he accidentally nudges his
A boat is traveling upstream at 14 km/h with respect to thewater of a river. The water itself is flowing at 9 km/h withrespect to the ground. What is the velocity of the boat with respect to the ground
The magnitude of q is chosen to make the potential difference between spheres 430 V, with the inner sphere at higher potential. Compute q.
A 4.19-kg ball of clay is thrown downward from a height of 2.79 m with a speed of 4.21 m/s onto a spring with k = 1490 N/m. Find the maximum compression of the spring
Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is 1.65 105 Pa and the pipe radius is 2.80 cm. Find the speed of flow in the upper section
A large boulder rests on a cliff 500 m above a small village in such a position that, if it should slide off, What is the final impact velocity of the boulder
You have a 193 Omega resistor, a 0.400 H inductor, a 4.92 uF capacitor, and a variable-frequency ac source with an amplitude of 2.91 V. What will be the current amplitude at this frequency
A car traveling 90km/h slows down at a constant 0.50 m/s^2 just by "letting up on the gas." Compute the distance it travels during the third second.
What is the magnitude of the acceleration of the anvil. find the mass of the planet from this information.
A long straight horizontal wire carries a current I = 2.40Ato the left. What is the magnitude F of the magnitude force on the charge
A parallel-plate capacitor is charged to an electric potential of 337 V by moving 3.95×1016 electrons from one plate to the other. How much work is done in charging the capacitor.
An RLC circuit is driven by a generator with an emf amplitude of 86.3 V and a current amplitude of 1.50 A. The current leads the emf by 0.516 rad. What are the (a) impedance and (b) resistance of the circuit?
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