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Two solid bars are attached to each other and fixed to a wall on both ends. One is made of steel, is 14 in long, and has a diameter of 2 in. The other is made of brass, is 22 in long, and has a diameter of 4 in. If a torque of 16,000 in-lb is applied at the point where the two are joined, calculate the maximum amount of twist in the bar as a whole and the shear stress in both materials.
The area of a typical eardrum is about 5.0 × 10?5 m2. (a) Calculate the sound power (the energy per second) incident on an eardrum at the threshold of hearing. W (b) Calculate the sound power incident on an eardrum at the threshold of pain. W
A motorist drives south at 28.0 m/s for 3.00 minute, then turns west and travels at 25.0 m/s for 2.20 minute, and finally travels northwest at 30.0 m/s for 1.00 minute. determine average velocity and speed
An electron is in the sixth excited orbit of hydrogen, corresponding to n = 7. Find the wavelength of the electron in this orbit
The period (time for a complete oscillation) of a simple pendulum depends on the pendulum s length L and the acceleration of gravity g. The dimensions of L are L, and the dimensions of g L/T2are Apart from dimensionless factors, how does the peri..
Microbiologists measure total current due to potassium ions (K +) moving through a cell membrane of a rock crab neuron cell to be 35 nA. How many ions pass through the membrane each second
A dentist's drill starts from rest. After 3.30 s of constant angular acceleration it turns at a rate of 2.8 x 10^4 rev/min, Determine the angle (in radians) through which the drill rotates during this period
In a crash test, a test car of mass 1711 kg is moving at a speed of 37.2 m/s when it crashes into a wall. how much average power (in W) is expended in this process
A train moving with constant velocity travels 190mnorth in 11s and an undetermined distance to the west. The speed of the train is 33m/s. How far west has the train traveled in this time
From the top of a 90 m cliff, Aaron throws a ball directly downwards with an initial velocity of 1.80 m/s. What is the average velocity of the ball through this trip? How long in seconds does the ball take to reach the ground?
A mouse of mass m jumps on the outside edge of a freely turning ceiling fan of rotational inertia I and radius R. By what ratio does the angular velocity change
An object is located to the left of a concave lens whose focal length is -40 {cm}. find the distance through which the object should be moved
Assume the corners of a cube of side a are occupied each by a positive charge q. What is the net force on each of the eight charges
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