Ferns spread spores instead of seeds, and some ferns eject the spores at surprisingly high speeds. one species accelerates 1.4 μg spores to a 4.5 m/s ejection speed in a time of 1.0 ms. what impulse is provided to the spores? what is the average force on a spore?

Impulse is

The average force is

Explanation:

When a mass undergoes a change in velocity , its impulse is

and if a force is acting for time , then the impulse is given by

Now the mass of the spores in kg is

we calculate the impulse from the first formula:

Now that we have impulse, we calculate the average force on the spore from the second formula:

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).

wavelength divides in half and speed stays the same.