A force of 300 N is used to stretch a horizontal spring with a 0.5 kg block attached to it by 0.25 m. The block is released from rest and undergoes simple harmonic motion.
Calculate
2.4.1 Spring constant (2)
2.4.2 Mechanical energy applied (2)
2.4.3 Velocity when x = 15 cm

Calculate the work done by an external agent during an isothermal compression of 1.00 mol of oxygen from a volume of 22.4 l at 10∘c and 1.0 atm pressure to 16.8l

What causes the formation of ocean currents?

Rank the six combinations of electric charges on the basis of the electric force acting on q1. define forces pointing to the right as positive and forces pointing to the left as negative. rank positive forces as larger than negative forces. q1,q2,q3 = positive(+) q1 = + q2 = + q3 = - q1 = + q2= - q3= + q1= - q2= + q3= + q1= + q2= - q3= - q1,q2,q3 = negative