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Compare the contribution of electrons and phonons to the thermal conductivity of a mono-valent metal (one valence electron per atom) at 300K.
A thin spherical shell consists of a radius of 2.40 m. An applied torque of 737 N•m provides the shell an angular acceleration of 6.60 rad/s2 about an axis via the center of the shell. Determin
(i) Determine the rotational inertia of the cylinder about the axis of the rotation? (ii) When the cylinder is free from rest with its central longitudinal axis at the similar height as the axis abo
A disk rotates about the central axis beginning from rest and accelerates with the constant angular acceleration. At one time it is rotating at 12 rad/s; 30 radians later, its angular speed is 25 ra
The planet consists of no atmosphere. A meteor far away from the planet moves at speed 5.0 km/s on a collision course with Zoroaster. Determine how fast is the meteor going if it strikes the surface
A microscope having a 9.0 mm focal-length objective consists of a tube length of 20.0 cm. For the microscope to be in focus, determine how far must the objective lens be from the specimen?
Determine the comet's speed at its perihelion (closest approach to the Sun) where its distance from the Sun is around 8.2 x 10^10 m?
Norah wants to purchase a mirror so that she can check on her appearance from top to toe before she goes off to work. When Norah is 1.64 m tall, determine how tall a mirror does she require?
The sewage having density 1 050 kg/m3, enters and leaves the pump at atmospheric pressure and via pipes of equivalent diameter. (i) Determine the output mechanical power of the lift station.
A biconvex lens consists of a focal length of 12cm. A 4cm tall candle is located 18cm in front of the lens. Determine the characteristics of the image. Employ the diagram and the lens equation.
the merry-go-round of m mgr = 250 kg, r mgr = 1.5 meters is rotating having an angular velocity of 15 radians/sec, the girl gets up and walks tp the very center of the merry-go-round, determine the
A uniform cylinder having radius R and mass M is mounted so as to rotate freely about a horizontal axis which is parallel to, and a distance h from the central longitudinal axis of the cylinder. i)
When the above wheel is rotating at the angular velocity of 15 rad/s, a torque is exerted to stop the wheel above an angular displacement of 45 radians, determine the magnitude of the exerted torque
By using the information from the above question, supposing the cylinder begins at rest, determine the angular velocity after going one revolution?
A cell membrane consists of a resistance and a capacitance and therefore a characteristic time constant. Determine the time constant of an 8.1 nm-thick membrane surrounding a 4.2 x 10-2 mm-diameter
A motorcycle, which consists of an initial linear speed of 6.3 m/s, decelerates to a speed of 1.9 m/s in 5.1 s. Each and every wheel consists of a radius of 0.70 m and is rotating in the counterclo
You wish to form a spring-weight combination with a one second period. Your spring stretches .52 meters if you suspend a 1.1 Newton weight on it. Determine how many kg you should utilize for the mas
Determine how many feet long must a pipe with two open ends be so the harmonic just higher than the fundamental is 2,800 Hz? Suppose that the velocity of sound is around 340 f/s.
Oxygen and hydrogen join to form water. When the original volume was 9.1 cubic meters determine what the new volume is?
When you hear a frequency of 130+17 Hz determine how fast is the slithered slithering toward you (in m/s)? The speed of sound is around 300 m/s.
When you weigh 180 lb, determine how many feet can you walk out on the pole to rescue a mass-less cat trapped at the end of the pole?
You plan to begin your motorcycle by running up to it, jumping on, and by employing your combined speed to begin the engine. Determine how many f/s should you be going when you run up if the final v
Express KE = 1/2 m v ^2 for a variable force that accelerates a mass m to a velocity v starting from rest. Describe carefully. When you have any constants of integration describe how you deal with t
Tarzan grasps a 35 meter long vine and swings down from his tree. The vine at first makes an angle of 32 degrees with the vertical. Determine how many meters per second is Tarzan going as he falls o
After descending 200 feet vertically she comes to 79 feet of level snow having a mu of .51. She then goes up a 35 degree slope, again without friction. Determine how many feet (vertically) is she ab