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The propeller of a light plane has a length of 2.032 m and a mass of 19.96 kg. The rotational energy of the propeller is 373.7 kJ. What is the frequency of the propeller in rpm? You can treat the pr
Write the expression for the radial distribution function of a 3p electron in a hydrogenic atom and determine the radius at which the electron is most likely to be found.
The magnetic field inside a superconducting solenoid is 5.00 T. The solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. (a) Determine the magnetic energy density in the field.
If the solenoid is connected in series with a 2.50 Ω resistor and a battery, what is the time constant of the circuit?
What was the work transfer? Was the work done on or done by the system? What was the heat transfer? Was the heat added or removed from the system?
Find the electric potential difference VB - VA due to a point charge q1 = -2.79 nC that is 0.5 m from location A and 1.0 m from location B.
Point charges q1, q2, and q3 are fixed at the vertices of an equilateral triangle whose sides are 2.40 m long. Find the electrostatic potential energy of this system of charges for the following cha
A woman can read the newspaper if it is held no closer than 57.2 cm from teh eye. What should the focal length of a lens be if she wants to read at a more comfortable distnace of 23.8 cm
An object is placed at a distance of 1.5 m from a screen and a convex lens is interposed between them. The magnification produced is 4. What is the focal length of the lens?
A rail gun accelerates a projectile from rest by using the magnetic force on a current-carrying wire. The wire has radius r = 5.77·10-4 m and is made of copper having a density of 8960
A 73 kg skydiver can be modeled as a rectangular "box" with dimensions 21cm x 44cmx 1.8m? What is his terminal speed if he falls feet first? (m/s)
When triggered, a current of 1.03 x 104 A flows through the wire, which accelerates the wire along the rails. Calculate the final speed of the wire as it leaves the rails. (Neglect friction.)
An electric dipole consists of Q=330nC separated by a distance of 1200nm. The dipole is initially oriented in -i direction. The dipole is in a uniform external electric field of E= 2500 i N/C Deter
The work function of Scandium is 3.5 eV. a) what is the threshold frequency for the photoelectric effect in Scandium?
The wire makes an angle of 32.3° with the magnetic field lines. If the magnitude of the force on the wire is 0.535 N, what is the magnitude of the magnetic field?
A hollow, conducting sphere inner radius ra= 18cm and outer radius rb=24cm has a charge of -3.7n C is placed on the conducter. At the center of the sphere and insulated from the sphere is a point
A pipe of length 0.80m is opened at both ends. If the fundamental frequency of this pipe is 340 Hz. What would be its fundamental frequency if it is closed at one end? Assume the pipe to have th
Zyton Corp. budgets production of 292 units in January and 264 units in February. Each finished unit requires five pounds of raw material Z, which costs $6 per pound. Each month's ending inventory o
Calculate the angular momentum of the system when the stick is pivoted about an axis perpendicular to the table through the 60.0 cm mark.
A series of object are being rotated. The same net torque is being applied to each object. Rank the object in order of the resulting angular acceleration (1=lowest).
A square plate of edge length 12.0 cm and negligible thickness has a total charge of 5.80 x 10-6 C. Estimate the magnitude E of the electric field just off the center of the plate (at, say, a distan
The magnifying power of an astronomical telescope in the normal adjustment poition is 20.If the lenght of the telescope is 105 cm in this adjustment, Find the focal lengths of the 2 lences.
The distance between the slits and the screen is two meters. Calculate the slit width and slit separation.
Each month's ending inventory of raw materials should be 30% of the following month's budgeted production. The January 1 raw materials inventory has 438 pounds of Z. Prepare a direct materials budge
The moment of inertia of the student plus stool is 3.09 kg·m2 and is assumed to be constant. The student pulls the weights in horizontally to a position 0.302 m from the rotation axis.(a) Find