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A small ball is attached to one end of a spring that has an unstrained length of 0.152 m. The spring is held by the other end, and the ball is whirled around in a horizontal circle at a speed of 3.59 m/s. The spring remains nearly parallel to the ground during the motion and is observed to stretch by 0.0161 m. By how much would the spring stretch if it were attached to the ceiling and the ball allowed to hang straight down, motionless?
What are the lowest and the highest frequencies. calculate the acceleration of the crate.
A series AC circuit contains a 159 ? resistor, a 360 mH inductor, a 2.4 µF capacitor, and a generator with maximum voltage of 240 V operating at 50 Hz. Calculate the inductive reactance
A curve in a highway has radius of curvature 120 m and is banked at 2.8°. what is the safest speed to go around the curve
An ideal gas is taken through a Carnot cycle. The isothermal expansion occurs at 240°C, and the isothermal compression takes place at 50.0°C. Find the energy expelled to the cold reservoir in each cycle
A person with mass m1 = 60 kg stands at the left end of a uniform beam with mass m2 = 91 kg and a length L = 3.2 m, What is the location of the center of mass of the system
Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^?2cm, Find its speed (vfinal) when it strikes the anode
A copper rod and an aluminum rod of equal diameter are joined end to end in good thermal contact. what must be the length of the aluminum rod so that the temperature at the junction is 50°C
A wheel rotates without friction about a stationary horizontal axis at the center of the wheel. What is the moment of inertia of the wheel
A cable is stretched horizontally across the top of two vertical poles 20 m apart. What is the tension in each cable segment
One mole of a dilute gas initially has a pressure equal to 1.00 atm, and a volume equal to 13.0 L and an internal energy of 1.98 kJ. As the gas is slowly heated, Find the heat absorbed by the gas
A plane is flying at an altitude of 10000 metres, and the pitot tube measures a gauge pressure of 10kPa. What is the airspeed of the plane
A 5.1- kg concrete block rests on a level table. A 3.6- kg mass is attached to the block by a string passing over a light, find the coefficient of friction between the block and the table
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