Question 2: Sliding block (8 points) A block of mass m is attached to a wall with a spring and is free to slide on a horizontal, frictionless surface. The block is initially pulled a distance x0 from its equilibrium position and is released from rest. (a) [3 points] Question: Determine the position x of the block at which the magnitude of its acceleration is maximal. Justify your answer. (b) [2 points] Question: If the block were pulled a distance 2x0 from its equilibrium position and then released, would the oscillation period T decrease, increase or remain the same

Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below.your friend goes first,and you follow after he has dropped a distance of 2.0m.when your friend hits the water,is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.

Calculate the ratio of h+ ions to oh– ions at a ph = 6. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 6. are they the same? why or why not? record your explanation in table a. what is the concentration of h+ ions at a ph = 6? mol/l what is the concentration of oh– ions at a ph = 6? mol/l what is the ratio of h+ ions to oh– ions at a ph = 6? : 1

If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.