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You have a spring and you measure its natural length to be 10.0 cm. When you hang the massless spring from the ceiling and attach a 4kg mass to it, you measure the length to be 14.0cm. You then attach the spring to a 6.00kg mass in the configuration below and set it in harmonic motion. What is the period of this motion in seconds?
A sonar device makes a soundwave in the air with a frequency of f1 = 61 Hz. What is the frequency of the sound wave created
A plastic rod is rubbed with a cloth, and in the process it acquires a charge of ?2.1×10E?8C. How much does the mass of the rod increase by
A toy car is driven by a battery of 9V. it draws a current of 2mA. what is the resistance of the car
A heat engine operating between energy reserviors of 119.94 oC, How much energy must this engine extract from the hot reservior to do 1,583.1J of work
Vibration from a 475 Hz tuning fork sets up standing waves on a string clamped at both ends (one of which you may take as x=0). What is the wavelength of the travelling waves that form this standing wave
A solid cylinder of mass 148.7 kg and diameter 0.72m has mounted to rotate around its axis, the cylinder has an initial angular velocity of wi, and the mass is 26m below the cylinder
Rotates a 1.00 kg discus along a circular path of radius 1.04 m. The maximum speed of the discus is 17.0 m/s. Find out the magnitude of the maximum radial acceleration of the discus.
A boy of mass 58.1 kg is about to disembark from a canoe of mass 36.3 kg, How far is the boy from the dock when he reaches the bow
A 3000-kg Ferris wheel accelerates from rest to an angular speed of 0.17rad/s in 11s, What is the net torque on the wheel
Sue and Sean are pushing on opposite sides of a 5.0kg box which is on a frictionless surface. What is Sean's force if the box accelerates away from Sue at 2.0m/s^2
A helium-neon laser (wavelength = 630 nm) is used in a single-slit experiment with a screen 7.5 m away from the slit. what is the width of the central bright fringe on the screen
An archer, about to shoot an arrow, is applying a force of +320 N to a drawn bowstring. What is the displacement of the bowstring
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