Examlex
A 3-kg block, attached to a spring, executes simple harmonic motion according to x = 2cos(50t) where x is in meters and t is in seconds.The spring constant of the spring is:
Q3: A 2.0-kg block starts from rest on
Q17: Of the following which might NOT be
Q21: An inventor suggests that a house might
Q30: A machinist starts with three identical square
Q31: The coordinate of an object is given
Q34: Two uniform cylinders have different masses and
Q50: In a thermally insulated kitchen, an ordinary
Q62: A U-tube has dissimilar arms, one having
Q68: Gases may be distinguished from other forms
Q99: The figure shows forces acting on