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Principles of Supervision
Appraising employee performance on a regular basis has an important influence on an employee's performance. Coaching is an ongoing task that gives employees instruction and suggestions. Promotion of employees is generally based on recognition of past performance.
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A 2.30-g bullet embeds itself in a 1.30-kg block, which is attached to a spring of force constant 780 N/m. If the maximum compression of the spring is 5.80 cm , find the initial speed of the bullet.
A prospector finds a solid rock composed of granite (? = 2650 kg/m3) and gold. The volume of the rock is 3.40 10-4 m3 and its mass is 3.87 kg. a) What mass of gold is in the rock? b) What percentage of the rock is gold by volume? c) What percentag..
A 5.60 kg mass is pushed against a spring ( k = 2000 N/m) such thatthe spring is compressed 12.0 cm. The mass is released,slides 1.50 m down the incline, along which μ = 0.140. Determine the kinetic energy as it reaches level ground. (angle ofthe ..
An organ pipe open at one end has a length of 60 cm. If the speed of sound in air is 340 m/s, what is the lowest frequency produced by the organ pipe
Using the definition of entropy change, dQ = T dS, what is the entropy change of the hot reservoir
you are given a 5-loop standing wave. The velocity of the wave of the string is v= 10 m/s. What is the frequency of the wave on the string
A father pushes his child on a swing so that the child's speed is 9.00 m/s at the lowest point of his path. What force does the child exert on the seat if his mass is 18.0 kg
Calculate the work done, the amount of heat absorbed, and the change in internal energy during: melting of 1 gram of ice to water at a temperature of O degrees Celsius under a constant pressure of 1 atmosphere
A 7hp (shaft) pump is used to raise water to an elevation of 15m. If the mechanical efficiency of the pump is 82% determine the max volume flow rate.
A solenoid length 7.0 x10-2m and a cross-sectional are5.0 x 10-5 m2 contains 6000 turns per meter of length. Decide the emf induced in the solenoid when the current in the solenoid changes from 0 t0 1.5 A through the time interval from 0.0 to 0.20s. ..
twelve identical point charges q are equally spaced around the circumference of a circle of radius r. the circle is
A concave mirror (f = 50. cm) produces an image whose distance from the mirror is one-third the object distance. Decide (a) the object distance and (b) the image distance. Treat the fraction as an exact number.
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