Sound waves produced by a source pass a point five times every second. which of the following choices correctly describes the period and frequency of these waves?

the frequency is 1/5 hz, and the period is 1/5 second.

the frequency is 1/5 second, and the period is 5 hz.

the period is 1/5 second, and the frequency is 5 hz.

the period is 5 s, and the frequency is 5 hz.

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

The ph is the a. independent variable b. the dependent variable c. control group

Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative