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The work to required to strech a certain spring by an elongation of 4.00 cm to an elongation of 5.00cm is 30.5 J. (a)is the work required to increase the elongation of the spring from 5.00 cm to 6.00 cm greater than,less than or equal to30.5J? Explain (b) verify your answer to part (a) by calculating the required work.
A 2.00 kg block is held in equilibrium on an incline of angleθ =60° by ahorizontal force vector F applied in the direction shown in the figure below. If the coefficient of static friction between block and incline isµs = 0.300, determine the followin..
In a ballistic pendulum experiment a 20 g bullet is shot into a 2.3 kg block of wood suspended by a cord of negligible mass. what is the approximate muzzle speed (in m/s) for the gun that fired the bullet
A pendulum is made by suspending a .1kg meter stick through a pivot locaed .3m from one end. Find the period of small oscillatons
question a beam of sunlight encounters a plate of crown glass at a 36.50deg angle of incidence. crown glass has n
Suppose 1500 J of heat are added to 5.6 mol of argon gas at a constant pressure of 120 kPa. Calculate the change in volume of the gas
A coil of inductance 81 mH and unknown resistance and a 0.84 µF capacitor are connected in series with an alternating emf of frequency 875 Hz. what is the resistance of the coil
Suppose we rely upon friction between the wall and the rod to hold up the sign (there is no hinge attaching the rod to the wall). What is the smallest value of the coefficient of friction
q1. a caterpillar climbs up a one-meter wall. for every 3 cm it climbs up it slides down 1 cm. it takes 10 minutes for
Compare the shift in frequency if a 1750 Hz source is moving toward you at 15m/s versus you moving toward it at 15 m/s. Are the two frequencies exactly the same? Are they close? (b) Repeat the calculation for 150 m/s and then again (c) for 300 m/s. W..
A wheel spinning at 25 rev/s is slowed to a stop by a constant acceleration while turning 50rev. What is the magnitude of the constant acceleration
A car misses a turn, sinks into a shallow lake, coming to rest on its side with the door horizontal and at a depth of 9.3 m. find the force exerted on the inside of the door by the air
A tug of war is held between two teams of five men each. The mass of each man is 80 kg and he can initially pull on therope with a force of 1000 newtons. find the position of the teams as function of time
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