An object of mass of 2.0 kg hangs from an ideal massless spring with a spring constant of 50 N/m. An oscillating force F = (4.8 N) cos[(3.0 rad/s)t] is applied to the object
What is the amplitude of the resulting oscillations? You can neglect damping.
A) 2.4 m B) 0.30 m C) 0.15 m D) 1.6 m E) 0.80 m
C
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What will be an ideal response?
Refracting Telescope: A telescope has an angular magnification of 250 when used with a 20 mm eyepiece. What is the focal length of the objective lens?
A. 5.0 cm B. 25 m C. 5000 cm D. 5.0 m E. 2.5 m
A mass src="https://sciemce.com/media/4/354096dfc31fe48a34.png" class="w-image" />?
is connected by a light string that passes over a pulley of mass M to a mass 
sliding on a frictionless incline as shown in the figure. There is no slippage between the string and the pulley. The pulley has a radius of 30.0 cm and a moment of inertia of 
If 
is 4.00 kg, 
is 4.00 kg, M is 4.00 kg, and the angle is 70.0 degrees, then what is the acceleration of
A. 3.10 
B. 2.89
C. 2.43
D. 2.15
E. 1.49