6. Two objects with masses of 4.00 kg and 3.00 kg, respectively, are connected by a string of length 2.00 [m] that passes over a frictionless pulley. Determine: (a) the tension in the string, (b) the acceleration of each object, (c) the distance each object moves in the first second of motion if both objects start from rest, and (d) the velocity of each object after the first second. 7. Suppose the hockey puck in Ch._#4, problem #5 is placed on a different ramp that is not frictionless, but instead has coefficients of kinetic and static friction equal to 0.65 and 0.75, respectively. (a) At what minimum inclination angle would ramp have to be placed in order for the puck to begin to slide down the ramp? (b) What would be the acceleration of the puck as it slides down this ramp set at the angle calculated in part (a)? (c) If the puck once again starts at a height of 0.500 [m] above the floor, how long would it take for the puck to slide to the bottom of the ramp? (d) For this case, what would be the effect of doubling the mass of the puck