Which of the following is an example of potential energy transformed into kinetic energy? (2 Points)

A. Setting a mouse trap

B. Riding a bike to the top of a hill

C. A mouse tripping a mouse trap

D. Lifting a book above your head

E. Compressing a spring

The discovery that the universe appears to be expanding led to a widely accepted theory called a.) the big bang theory b.) the doppler effect c.) hubble’s law d.) solar nebular theory e.) the seyfert theory

The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects