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Jill of the jungle swings on a vine 6.4 meter long. Calculate the tension in the vine if Jill, whose mass is 61 kilogram, is moving at 3.0 m/s when the vine is vertical?
A speed skater goes around a turn that has a radius of 27 m. The skater has a speed of 15 m/s, What is the mass of the skater
A spring scale is fastened to the ceiling of a railway car. When a 1.0-kg block is hung from the scale, it reads 12 N and is oriented as shown in the figure. What is the approximate acceleration of the car as measured by an observer at rest on the ..
a kereru new zealand wood pigeon travelling at 1.5 m/s due west has an elastic collision with an airbus a380 aeroplane. with what speed is the kereru travelling after the collision?
You have three resistors with values 3.7?, 2.8?, 5.1?, and a battery of 3.6V. You begin by connecting the three resistors in parallel, What is the magnitude of the current in the 2.8 resistor
Three equal point charges, each with charge 2.00, are placed at the vertices of an equilateral triangle whose sides are of length 0.650. Illustrate what is the electric potential energy of the system?
The bulk modulus of aluminum is 7.1 1010 N/m2. If the density of aluminum is 2.7 103 kg/m3, then what is the speed of sound in aluminum
question a nearsighted person wears glasses to correct the problem. the lenses in the glasses have a focal length of
an ion accelerated through 180.00 v has its potential energy decreased by potential energy of 5.76 x 10-17 j. calculate
a car accelerates from 23 ms to 28 ms while travelling a distance of 1.97 m due to a 97800-n net force acting on it.
A force of 1250N is needed to move a crateweighing 3270N up a ramp that is 4.55m long. if the elevated end ofthe ramo is 0.750m high, what is the efficiency of theramp?
Kathy is changing the tire of her car on a steep hill 20.0 m high.She trips and drops the 10.0-kg spare tire, What is the speed of the tire at the top of the next hill
Eight lights are connected in parallel to a 116 V source by two leads of total resistance 1.1. If 240 mA flows through each bulb, what is the resistance of each? What fraction of the total power is wasted in leads.
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