Ablock slides across a frictionless horizontal surface with constant acceleration 4.15 m/s2 and over a time interval reaches a final velocity of 12.2 m/s.
(a) if its initial velocity is 6.10 m/s, what is its displacement (in m) during the time interval? (indicate the direction with the sign of your answer.) m
(b) what is the distance it travels (in m) during this interval? m
(c) if its initial velocity is −6.10 m/s, what is its displacement (in m) during the time interval? (indicate the direction with the sign of your answer.) m
(d) what is the total distance it travels (in m) during the interval in part (c)?

Afrequency generator sends a 550 hz sound wave through both water and ice. what is the difference in wavelength between the wave produced in ice and the wave produced in water?

Need only answer if you think you know it

Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.