A0.520-kg object attached to a spring with a force constant of 8.00 n/m vibrates in simple harmonic motion with an amplitude of 10.8 cm.

(a) calculate the maximum value of its speed.

(b) calculate the maximum value of its acceleration.

(c) calculate the value of its speed when the object is 6.80 cm from the equilibrium position. cm/s

(d) calculate the value of its acceleration when the object is 6.80 cm from the equilibrium position. cm/s2

e) calculate the time interval required for the object to move from x = 0 to x = 2.80 cm.

Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.

He viscosities of several liquids are being compared. all the liquids are poured down a slope with equal path lengths. the liquid with the highest viscosity will

Which atomic model was proposed as a result of j. j. thomson’s work?