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ConsideragainFig.1.12.Nowletthe14-kgweighthangfromthemid- dle of the lower arm (20 cm from the fulcrum). Calculate the biceps force and the reaction force at the joint.
The reflected sound is afterwards mixed with the transmitted sound, and 85 beats per second are detected. The speed of sound in body tissue is 1520m/s. compute the speed of the fetal heart wall at the instant this measurement is made.
A string under a tension of 47.00N is used to whirl a rock in a horizontal circle of radius 2.60 m at a speed of 21.0 m/s. The string is pulled in and the speed of the rock increases.
In an amusement park water slide, people slide down an essentially frictionless tube. Does the mass of the person make any difference
The intensity of sunlight that reaches Earths amosphere is 1400 W/m2. What is the intensity of sunlight
A current of 16.0A flows through an electric heater operating on 120 V. Compute the power consumption of the electric heater
A potter's wheel, with a moment of inertia 36 kg*m2, is spinning freely at 40 rpm. The potter drops a lump of clay onto the wheel, what is the mass of the clay
At a temperature of 0° C, the mass and volume of a fluid are 798 kg and 1.25 m3. The coefficient of volume expansion is 1.25 10-3(° C)?1. What is the density of the fluid when the temperature has risen to 21.0° C
An anemometer for measuring wind speed consists of four metal cups, each of mass m = 140 g, mounted on the ends of four essentially massless rods of length R= 0.37 m. The rods are at right angles to each other and the structure rigidly rotates..
The rms speed of 1.0 mol of argon atoms (atomic weight 40 g/mol) in a box is 680 m/s. Treat the gas as ideal. What is the temperature inside the box
q1. an archer puts a 0.26 kg arrow to the bowstring. an average force of 213 n is exerted to draw the string back 1.3
A 19-kg chandelier is suspended from the ceiling by four vertical steel wires. Each wire has an unloaded length of 5 m, how far do the wires stretch
What diameter has the tip of the second hand with 100mil/hr tangential speed? What diameter has the tip of the minute hand with 100mil/hr tangential?
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