Which of the following is not an example of kinetic energy being converted to potential energy
a) a basketball player jumping for a rebound
b) releasing a compressed spring
c) sqeezing a rubber ball
d) pulling a sled uphill

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz. what wavelength is produced?

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.