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Superwoman is hovering above the ground when a parachutist in free-fall goes by her at terminal velocity of 140km/h. The parachute does not open and it takes Superwoman 1.9 s to realize the person is in trouble, and then from a height of 1000 m she must catch the parachutist before they hit the ground. What must her minimum acceleration be to catch the parachutist right at the ground?
An object with a mass of m = 4.8 kg is attached to the free end of a light string wrapped around a reel of radius R = 0.225 m, Determine the magnitude of the acceleration of the object
A size-5 soccer ball of diameter 22.6 and mass 426 rolls up a hill without slipping, reaching a maximum height of 3.50 above the base of the hill. How much rotational kinetic energy did it then have
A sensor resistance varies from 520 to 5200 Ω. This is used for in the divider of Figure 4, along with R2 = 500 and Vs = 10.0V.- Find the range of the divider voltage, VD, and the range of power dissipation by the sensor.
q1. water at a temperature of 85f exhibits which of these physical propertiesa. has no definite shapeb. has no definite
a 2.17 kg particle has the xy coordinates -1.36 m 0.792 m and a 2.34 kg particle has the xy coordinates 0.487 m -0.102
In seawater, a life preserver with a volume of 4.00×10?2m^3 will support a 72.0kg person (average density 980kg/m^3 ), compute the density of the material composing the life preserver
You need to produce a solenoid that has an inductance of 2.17 ?H. How long, in centimeters, should the tube be
the driver of a 1720kg car traveling on a horizontal road at 116kmh suddenly applies the brakes. due to a slippery
A spherical brass shell has an interior volume of 2.00 x 10-3 m3. Within this interior volume is a solid steel ball that have a volume of 0.86 x 10-3 m3. The space between the steel ball and the inner surface of the brass shell is filled completely w..
The highest theoretical efficiency of a gasoline engine, based on the Carnot cycle, is 0.300 or 30.0%. what is the temperature in the cylinder immediately after combustion
Find the equivalent resistances REQ1 and REQ2 in given Figure. Note that in calculating REQ2 the 33-kΩ resistor is connected to an open circuit and therefore does not affect the calculation.
A 2.63-kg block initially at rest at the top of a 4.43-m incline with a slope of 42.7° begins to slide down the incline. How fast is the block moving at the bottom of the incline
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