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A bimetalic strip consists of a thinstip of brass [Alphabrass=19X106(Co)-1] riveted to a thin strip of steel [Alphasteel=12X106(Co)-1]. What happens when it is heated above room temperature?
Consider an ideal monatomic gas of 1026 atoms. What is the internal energy of this system at 27 °C? If the temperature is raised by 1 °C, by what factor does the number of accessible states increase? What is the increase in entropy in this case?
If this lens is then immersed in silicone oil with a refractive index of 1.52, what will the focal lens of the lens be in this environment
A member of an aircraft maintenance crew wears protective earplugsthat reduce the sound intensity by a factor of 380. When a jetaircraft is taking off, the sound intensity level experienced bythe crew member is 84 dB.
A 4.13 kg silver ingot is taken from a furnace, where itstemperature is 751 degrees C, and placed on a very large block ofice at 0.00 degrees C. how much ice is melted
A movie camera with a (single) lens of focal length 95 mm takes a picture of a person standing 28 m away. what is the height of the image in millimeters on the film
After fixing a flat tire on a bicycle you give the wheel a spin. If its initial angular speed was 4.92 rad/s and it rotated 13.2 revolutions before coming to rest, For what length of time did the wheel rotate
a rock is dropped into an abandon mine and a splash is heard 10 s later. how fast the rock was falling when it hit the water
a 1100kg auto is at rest at a traffic signal. At theinstant the light turns green, how far is the com of the auto-truck system from the traffic light at t=1.6s
determine the effect of nuclear mass on the first line of the balmer series of hydrogen by calculating its wavelength
what is significant about the vertical velocity when the projectile is at its maximum height?do we consider air
A 500g mass on a string oscillates as a pendulum. The pendulum's energy decays to 50% of its initial value in 30s. What is the value of the damping constant
The drill bit of a variable-speed electric drill has a constant angular acceleration of 5.65 rad/s2. The initial angular speed of the bit is 6.56 rad/s. what angle has the bit turned through
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