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A 500 gram steel block rotates on a steel table while attached to a 2.0 meter long mass less rod. Compressed air fed through the rod is ejected from a nozzle on the back of the block, exerting a thrust force of 3.5 Newton. The nozzle is 70o from the radial line. The block starts from rest.
a. Find the block angular velocity after 10rev?
b. Find what is the tension in the rod after 10 rev?
A 90 capacitor that had been charged to 30 is discharged through a resistor. The figure (Figure 1) shows the capacitor voltage as a function of time. What is the value of the resistance
A duck has a mass of 2.6 kg. As the duck paddles, a force of 0.11 N acts on it in a direction due east. In addition, the current of the water exerts the force of 0.12 N in a direction of 44° south of east. When these forces begin to act, the velocity..
The Baretta Model 92S has a barrel 127 mm long. determine how long is the bullet in the barrel?
A heat engine does 250 J of work per cycle while exhausting 700 J of heat to the cold reservoir. What is the engine's thermal efficiency
Two masses, m1 = 2.10 kg and m2 = 9.51 kg are on a horizontal frictionless surface and they are connected together with a rope. What is the acceleration of the whole system
A 168N sign is supported from its top surface by two ropes that each make a 22.5o angle with the horizontal. The sign is not moving. How much force is in each rope
What is the acceleration due to gravity - The mass of the wire is negligible compared to the mass of the ball. Determine the acceleration due to gravity.
a police car is traveling east at 40.0 ms along a straight road overtaking a car ahead of it moving east at 30.0 ms.
On a workday the average decibel level of a busy street is 85 dB, with 100 cars passing a given point every minute. what is the decibel level of the street
The heating element of a simple heater consists of a 2.2-m-long, 0.65-mm-diameter nichrome wire. calculate the resistivity of nichrome in this situation
A ball is projected horizontally from the top of a building.One second later another ball is projected horizontally fromthe same point with the same velocity. What will the time difference be when the balls hit the ground
mileposts mark distance along a highway. a car traveled from milepost 15 to milepost 185. to calculate the average
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