Four objects are situated along the y axis as follows: a1.96 kg object is at +2.90 m, a 2.98 kgobject is at +2.46 m, a 2.60 kg object is at the origin, and a3.99 kg object is at -0.503 m. Where is the center of mass of theseobjects?
x = m
y = m

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.