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A loud speaker has an input of 73 dB. If the volume of the sound is turned up therefore that the output intensity is 10 times greater, what is the new sound intensity level? -----dB
The below cylinder has a 3.00 inch bore, 1.00 inch rod and a 40.00 inch stroke, what force will the cylinder rod exert after the cylinder extends
A 950-kg car traveling west at 15.0 m/s collides with a 750-kg car traveling north at 20.0 m/s. The cars stick together. Find the speed of the wreckage just after the collision
An object of mass m moves to the right with a speed v. It collides head-on with an object of mass 3m moving with speed v/3 in the opposite direction. what is the speed of the combined object
Explain how can an employee embezzle funds in an automated invoicing / purchasing accounting information system without being caught and recommend a potential control mechanism to detect the embezzlement.
A silver rod and a common glass rod both have the same length when at 20.0°C. The silver rod is heated to 52.3°C. To what temperature must the glass rod be heated so that they are again at the same length?
A large balloon of mass 222 kg is filled with helium gas until its volume is 335 m3. Assume the density of air is 1.29 kg/m3 and the density of helium is 0.179 kg/m3. Calculate the buoyant force acting on the balloon
Which of the following is not a valid criterion for the acceptance of a physical law or theory?
The Royal Gorge bridge over the Arkansas River is 360 m above the river. A bungee jumper of mass 93 kg has an elastic cord of length 85 m attached to her feet. Find the maximum speed of the jumper
IP Suppose a planet is discovered that has the same amount of mass in a given volume as the earth, but has radius 1/6 R Earth. Calculate the acceleration due to gravity on this planed
Two springs,each w/ spring constant 20N/m,connected parallel, & combination hung vertically one end.10-N weight is suspended from other end of combined spring
A force of 4.7 N acts on a 14 kg body initially at rest. Compute the work done by the force in thefirst second. Compute the work done by the force in the second second. Compute the work done by the force in the third second.
An airplane has a takeoff speed of 80 m/s which it reaches 35s after starting from rest. What is the minimum length of the runway
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