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The collision between a hammer and a nail can be considered to beapproximately elastic. Estimate the kinetic energy acquired by a 10.2 g nail when it is struck by a564 g hammer moving with a speed of 4.41 m/s.
You have a 2.01-m-long stretched string with a mass of 19.5 g. When you oscillate the string at 440 Hz, Calculate the tension in the string
A sound wave from a siren has an intensity of 92.5 W/m2 at a certain point, What is the intensity level of the sound wave due to the ambulance
A spring is attached to the bottom of an empty swimming pool, Determine the percentage of the block's total volume that is hollow
A string trimmer is a tool for cutting grass and weeds; it utilizes a length of nylon "string" that rotates about an axis perpendicular to one end of the string. What is the length of the rotating string
What is an average speed of the runner
How large a force F2 must the second crewman pull so that the net force of the two crewmen is in the forward direction.
Far in space, where gravity is negligible, a 480-kg rocket travelling at 95 m/s fires its engines. The figure shows the thrust force as a function of time. The mass lost by the rocket all through these 30s is negligible.
An airplane traveling at 480 km/h needs to reverse its course. The pilot decides to accomplish this by banking the wings at an angle of 38o. Find the time needed to reverse course
In Young's double slit interferance experiment, it is foundthat the second bright fringe is at the angle of 20 degrees. find the wavelength of the light source
A cook puts 9.20 g of water in a 2.00-L pressure cooker that is then warmed to 470°C. What is the pressure inside the container
A gas is allowed to expand at constant pressure until it reaches its final volume. It is then cooled at constant volume until it reaches its final pressure. Find the heat absorbed by the gas during this process
find the lowest frequency that make constructive interference.
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