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A person lifts a 100 Newton dumbbell by pulling upward with his biceps. The biceps are attached to the arm bone 1.5 cm from the elbow. The 100 N weight is 30 cm from the elbow. The forearm has a weight of 40 N and a center mass of 14 cm from the elbow. Assume all the angles are square for this problem. How much force is required to lift the elbow and the forearm?
The near point of an eye is 109 cm. A corrective lens is to be utilized to allow this eye to clearly focus on objects 26.0 cm in front of it. What must be the focal length of the lens? What is the power of the required corrective lens?
1 how long does it take a plane traveling at a constant speed of 160 ms to fly once around a circle whose radius is
A disk of radius1m and to mass 2 kg is suspended from a point on its circmfrences where it free to rotate. The value of g can be taken to be 10. What is the frequency of small oscillation, the wall which is against the ladder with a force of:
When a resistor is connected across the terminals of an acgenerator (112V) that has a fixed frequency, there is a current of0.500A in a resistor. When an inductor is connected across theterminals of this same generator, there is a current of 0.400..
If the slope is not frictionless so that the skier has a final velocity of 6 m/s, compute the force of friction (assuming it is constant), and the coefficient of kinetic friction.
Two polarizer's have their polarizing axis at 90 degree. Find what fraction of light passes through the three polarizers
Calculate the electric potentials VA and VB they produce at points A (35, 0) cm and B (75, 0) cm. Calculate the work done by their electric field on a charge q = 1.8 μC as the latter moves between points A and B.
1. How much charge has been transferred from the negative to the positive terminal? Express your answer using two significant figures. 2.How much work has been done on the charges that passed through the battery? Express your answer using two sign..
For tests using a ballistocardiograph, a patient lies on a horizontal platform that is supported on jets of air. determine the recoil velocity
An aluminum baseball bat has a length of 0.81 m at a temperature of 20°C. When the temperature of the bat is raised, the bat lengthens by 0.00016 m. Determine the final temperature of the bat.
An oscillating LC circuit consisting of a 2.0 nFcapacitor and a 3.8 mH coil has a maximum volatage of 6.0V. What is the maximum current through the circuit
We all sound like great singers in the shower, due to standing waves. Assume that your shower is 2.65 (about 8.72 ) tall and can be modeled as an organ pipe. What are the wavelengths of the first two overtones for this shower
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