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You have been hired to design a spring-launched roller coaster that will carry two passengers per vehicle. The vehicle goes up a 13 meter high hill, and then descends 20 meter to the track's lowest point. You have determined that the spring can be compressed a maximum of 2.1 meter and that a loaded vehicle will have a maximum mass of 400 kilogram. For safety reasons, the spring constant should be 12 percent larger than the minimum needed for the vehicle to just make it over the top.
Determine the maximum speed of a 360 kilogram vehicle if the spring is compressed the full amount?
suppose the astronaut has a weight on earth of 190 lbs and is wearing a space suit that weighs an additional 180 lbs on
Sheena can row a boat at 3.01 mi/h in still water. She needs to cross a river that is 1.26 mi wide with a current flowing at 1.43 mi/h. How long does it take her to cross the river
At one instant, force = 5.40 N acts on a 0.399 kg object that has position vector = (1.81 -1.81) m and velocity vector = (-5.91 + 5.91) m/s. determine the object's angular momentum
a 100.0 pf air-filled capacitor consists of two circular plates of radius 0.40 mm. how far apart are the
four point charges each having a charge with a magnitude of 1.5 microc are at the corners of a square whose sides are 6
A female gymnast weighs 700 N.Ifshe is hanging stationary from a high bar, how many forces are acting on her
What is the capacitance of this capacitor. Estimate the terminal speed of a wooden sphere (density 0.810 g/cm3) falling through air, if its radius is 8.00 cm and its drag coefficient is 0.5.
Your medieval history class is constructing a trebuchet, a catapult-like weapon for hurling stones at enemy castles, Find an expression for the angle that will maximize the range of a projectile launched with speed from height above level ground
q1. there is a well-known legend about physicist isaac newton. it says that he was inspired into his improvement of the
A 21.0 ohm bulb is connected across the terminals of a 12.0v- battery having 4.50 ohm of internal resistance. What percentage of the power of the battery is dissipated across the internal resistance and hence is not available to the bulb?
An elevator moves downward in a tall building at a constant speed of 4.35 m/s. Estimate the highest floor from which the bolt can fall
The spring of the pressure gauge shown in has a force constant of 1 400N/m, and the piston has a diameter of 1.60cm. When the gauge is lowered into water in a lake, what change in depth causes piston to move in by 0.850cm.
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