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Find the velocity of longitudinal waves along a thin steel bar. The modulus of elasticity and mass per unit volume of steel are
200×109N/m2 and 7810 kg/m3. respectively.
The response must be typed, single spaced, must be in times new roman font (size 12) and must follow the APA format.
In the afternoon, the decibel level of a busy street is95 dB with 100 cars passing at a givenpoint every minute. What is the late night decibel level
A conducting bar rests on two parallel horizontal rails 50 cm apart forming a square area. The resistance of the bar and the rails is assumed to be constant and equal to 0.05 ??. What is the maximum value of the force acting on the bar during that ..
a copper calorimeter can with mass 0.100kg contains 0.160kg of water and 0.018kg of ice in thermal equilibrium at
Shaving/make-up mirrors typically have one flat and one concave (magnifying) surface. What is the focal length of the mirror
A 3.00-cm-diameter parallel-plate capacitor with a spacing of 0.100mm is charged to 500V, What is the total energy stored in the electric field
A certain gasoline engine has an efficency of 30% what would the hot resevoir temp be for a carnot engine having that efficency if it operates with a cold resevoir temp off 200C
A brick is initially 12.10 cm high and an aluminum can is initially 12.11 cm high. By how much should their temperatures be raised in order for the brick and the can to have exactly the similar height?
A bat moving with a speed of 3.15{\rm m/s} and emitting sound of 39.0{\rm kHz}, What frequency is heard by the moth
A 3.93-g bullet, traveling at a speed of 421 m/s, strikes thewooden block of a ballistic pendulum, such as that in Figure 7.14.The block has a mass of 250 g. (a) Find the speed of thebullet/block combination immediately after the collision.
A horizontal spring, with spring constant k, has a mass, m,attached to it and is vibrating horizontally on a friction less surface. Which one of the following statements is CORRECT?
Ashley (65 kg) and Ryan (80 kg) ride their motorcycles (100 kg) at a speed of 15 m/s in a spherical metal cage with a diameter of 10m, What is the normal force on Ryan
A flower pot falls from the ledge of a building. A person in an apartment below, coincidentally holding a stopwatch, notices it takes 0.7s for the pot to fall past his window, which is 18m high. g=9.81m/s2. How far above the top of the window is t..
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