Is a wave that travels slower than 50 m/s most likely to be a sound wave a light wave or a water wave?

A wave is a transmission of a disturbance in a certain direction from the source.
Water waves are mechanical waves whose media of transmission is water, they have a speed depending on whether the region is shallow or deep. Sound waves are mechanical waves which are longitudinal in nature (with rarefactions and compressions), they travel with approximately 343 m/s in air. Light waves are electromagnetic waves that require no medium for transmission, in vacuum they travel with a speed of 3.0 ×10∧8 m/s. Therefore, the correct answer is water waves.

Wright can be measured in pounds

Explanation:

Mass is the quantity of matter a body contains while weight is the measure of mass of a body. Weight is the product if mass and the acceleration due to gravity of a body.

If the mass of an object is known, we can determine the equivalent weight of such object and vice versa using the relationship W = mg

m is the mass if the object (in kg)

W is the weight

g is the acceleration due to gravity

g can be measured both on metre/seconds or lb/ft². This means that the weight of an object can be measured in both kgm/s² (Newton) and lb(pounds).

Also note that different object have different masses hence it is not always true to say that a bowling ball has the same mass as a golf ball.

Based on the explanation above, it can be concluded that Weight can be measured in pounds which gives the only correct statement.