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Solve the following problems given below:
Problem I: A section of concrete roadway is 100 ft long at 72 F. How much will it contract if the temperature drops to 15 F?
Problem II: A copper pipe has an inside diameter of 2.000 inches at 60 F. What will be the diameter at 200 F?
Please show me how work it out above problems.
After a day of testing race cars, you decide to take your own 1410 kg car onto the test track. While moving down the track at 10m/s, you uniformly accelerate to 31m/s in 10 s. What is the average net force that you have applied to the car througho..
An electromagnetic doorbell has been constructed by wrapping 66 turns of wire around a long, thin rod, What is the magnitude of the angular velocity of the rod
A string 1.3 m long with a mass of 3.9 g is stretched between two fixed points with a tension of 93 N. Find the frequency of the fundamental on this string
A wind is blowing straight from north to south at an unknown speed. When you hold up a piece of thread you can see that the wind stretches it out so that it points from your hand to the south. What is the speed of the wind relative to the ground
A certain atom of has 73 protons. Assume that the nucleus is a sphere with radius 6.54 fm and with the charge of the protons uniformly spread through the sphere. At the nucleus surface what is the magnitude of the electric field produced by the proto..
If a camera with a 60 mm lens is to resolve two objects that are 3.0 mm from each other and both objects are 4.0 m from the camera lens, What is the resolving power
A rocket is launched straight up from the earth's surface at aspeed of 1.6×104 m/s. What is its speed when it is very far away from the earth
A 2.3 µF capacitor and a 5.3 µF capacitor are connected in parallel across a 320 V potential difference. Calculate the total energy in joules stored in the capacitors
A small sphere is released on a loop-de-loop device and it rolls without slipping. How high above the bottom of the loop should the sphere be released if when it is at the top of the loop the normal force acting on it is equal to its own weight? The ..
De Broglie postulated that the relationship λ =h/p is valid for relativistic particles. Determine the de Broglie wavelength for a (relativistic) electron having a kinetic energy of 3.40 MeV
an airplane pilot wishes to fly directly westward. according to the weather bureau a wind of 75.0 kmh is blowing
The mass density of an object is 14.3 g/cc, and its volume is determined to be 23.7 cc. What is the mass of the object
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