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An object with mass 3.0kg is attached to a spring with spring stiffness constant k=280N/m and is executing simple harmonic motion. When the object is 0.020m from its equilibrium position, it is moving with a speed of 0.55m/s.
a) Calculate the amplitude of the motion.
b) Calculate the maximum velocity attained by the object.
Some birthmarks can be removed by exposure to 585 nm laser light. Pulses are strongly absorbed by hemoglobin in the capillaries in the birthmark, What is the power of the laser pulse
The eyepiece of a refracting telescope (see Fig.34.53 in the textbook) has a focal length of 9.00 cm. What is the angular magnification of the telescope
The stoplight had just changed and a 1900kg Cadillac had entered the intersection, heading north at 3.8m/s, How fast was the Volkswagen going just before the impact
a 40g clay ball going southeast at a 45 degree angle at 4m/s collides with a 30g clay ball moving to the west at 3.0 m/s. find the speed and direction of the resulting blob of clay
A highway curve has a radius of 128 m. At what angle should the road be banked so that a car traveling at 27.2 m/s has no tendency to skid sideways on the road
On a swing, a 37 kg girl undergoes small-amplitude oscillations with period 4.1 s. How long are the ropes that support the swing
A liter of water has a mass of 1 kg and the mass of a water molecule is 18 amu. How many molecules of water are there in 2 L of water
You measure an electric field of 1.26×106 N/C at a distance of 0.149 m. from a point charge. find the magnitude of the charge
Describe two different energy alternatives to fossil fuels in detail. Discuss how they work, how they compare with fossil fuels, and their relative advantages and disadvantages.
Cat rides a merry-go-round turning counter clock wise at a uniform speed. There, the cat is under uniform circular motion. what is the time taken by the cat to complete a full circle
A square loop of wire consisting of a single turn is perpendicular to a uniform magnetic field. What is the flux that passes through the circular loop
How many 111 W lightbulbs can you use in a 107 V circuit without tripping a 16 A circuit breaker? (The bulbs are connected in parallel, that means that the potential difference across each lightbulb is 107 V.)
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