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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?
A 5.70 kg object on a horizontal frictionless surface is attached to a spring with spring constant 940 N/m. What is the frequency of the motion
The helium-neon laser you have used in this lab produces photons with an wavelength of 632.8 nm at a power of 3 milliwatts. How many photons are emitted from the laser every second
a duck and a guy named john are sitting on opposite sides of a large merry go round that is rotating clockwise. Describe the motion of the coconut viewed by the students
An object is placed 5 cm in front of a spherical mirror. A virtual image is formed 10 cm behind the mirror. What is the magnification of the mirror
Type your question hereSuppose you look through a 3.9 mm thick window comprised of a material whose refractive index is 1.58. By how many wavelengths is it delayed, if its vacuum wavelength is 600 nm
A rock is projected from the edge of the top of the building with an initial velocity of 12.2 m/s at an angle of 53 degrees above the horizontal. The rock strikes the ground a horizontal distance of 25m from the base of the building. Assume that t..
A wheel initially has an angular velocity of 18 rad/s. It has a constant angular acceleration of 2.0 rad/s2 and is slowing at first. What time elapses before its angular velocity is18 rad/s in the direction opposite to its initial angular velocity
Two loudspeakers emit 400Hz notes. One speaker sits on the ground. The other speaker is in the back of a pickup truck, What is the truck's speed in m/s
Tension is maintained in a string as in the figure below. What is the mass per unit length of the string
A CD originally at rest reaches an angular speed of 39 rad/s in 4.8 s. What is the magnitude of its angular acceleration
The frequency is tripled, so that the reactances of the inductor and capacitor are no longer equal. What are the new reactances of the inductor
q1. ricardo walks 22.0 in a direction 50.0 west of north. jane walks 20.0 in a direction 30.0 south of west. they after
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