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Two objects are placed on a flat turntable at 10.0 cm and 20.0 cm from the center, respectively.
The coefficient of static friction with the turntable is 0.50. The turntable's rotational speed is gradually enhanced.
a. Which of the two objects will start to slide first? Why?
b. At what rotational speed does the inner object begin to slide?
A 3Kg bar of aluminum has to be heated from 25 degrees Celsius to 75 degrees Celsius. how many calories are needed to achieve this temperature increase?
Explain the musical scale
A vernier callipers gives with an auxiliary (or vernier) scale in addition to the major measurement scale. The vernier scale may be slide with the main scale. The vernier scale is
Does the moment of inertia of a cylinder change if the direction of the rotation axis is changed, but it still goes through the center of mass?
Get an expression for work done during reversible isothermal expansion. Get the terms open, isolated and closed system. Give examples.
i need an assignment on spectrophotometer
Ultra violet Waves: The wavelength of ultra violet wave from 380mm down to 60nm.
Define the characteristics of Heterojunction laser. Heterojunction laser: The threshold current density for homojunction lasers is extremely large because of poor optical an
A boy goes to market with a average speed of 29 km/h.He returns back half the way he went with a average speed of 40 km/h.Find average speed for whole journey.
A point is operating simple harmonic motion with a time period 2πs. At its mean position its speed is 0.05 m/s. Calculate its speed when it is at a distance of 0.04 m from the mean
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