Two adaptations to plants are described below: Adaptation 1: A hornwort is a nonflowering plant that produces a large number of spores instead of seeds. Adaptation 2: A kangaroo paw has tiny, woolly hairs on it that help it hold onto water droplets. Which statement is true about these adaptations? Wich is the answer

Trumpeter a holds a b-flat note on the trumpet for a long time. person c is running towards the trumpeter at a constant velocity. person b is running away from the trumpeter at the same rate. person d is standing still the whole time. which person hears a frequency that is lower than the b-flat?

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy

What is the frequency if a wave that pases a given pount 22 times in 2 seconds