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A 1.5 m long stick by a mass of 0.3 kg is pivoted on a hinge at one end and held horizontally by a spring with spring constant 10N/m attached at the other end. What is the frequency, f (in Hz), of small up and down oscillations of the stick?
When you submerge a 1 kg gold statue into the water and measure the volume of displaced water, show that, for pure gold, the volume of water displaced will be 51.8 cm^3.
A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 2.8 later. If the speed of sound is 340 , how high is the cliff
Find the maximum altitude reached by the rocket.Find its total time of flight.
A uniform metal rod, with a mass of 3.4 kg and a length of 1.3 m, is attached to a wall by a hinge at its base. Find the vertical component of the force exerted on the rod by the hinge
Three resistors, 20, 40, and 72 Ω, areconnected in series, and a 0.53-A current passes through them. What is the equivalent resistance?
Light in a vacuum is incident on a transparent glass slab. Theangle of incidence is 35.6°. What is the index of refraction of the liquid
A 0.300 kg hammer is moving horizontally at 6.00 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. Calculate the duration of the impact
A glass is half-full of water, by a layer of vegetable oil (n = 1.47) floating on top. A ray of light travelling downward during the oil is incident on the water at an angle of58.0°. Decide the critical angle for the oil-water interface
Consider a series RLC circuit where R = 957 ? and C = 5.25 ?F. However, the inductance L of the inductor is unknown. What is the inductance of the inductor in millihenrys
To stretch a certain spring by 2.40cm from its equilibrium position requires 8.00J of work. What was the maximum force required to stretch it by that distance
Your task in physics lab is to make a microscope from two lenses. One lens has a focal length of 2 cm, the other a focal length of 1 cm. What will be the magnification of your microscope
You and your friends find a rope that hangs down 18m from a high tree branch right at the edge of a wide river. How long must you hang on if you want to stay dry
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