Jessie creates a model of two waves that have the same amplitude as shown.
which description best compares the two waves?

wave b has less energy because it has a lower frequency and a longer wavelength.

wave a has less energy because it has a higher frequency and a shorter wavelength.

wave b has greater energy because it has a higher frequency and a shorter wavelength.

wave a has greater energy because it has a lower frequency and a longer wavelength.

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min

the answer to this is proletariats.

hope this : )