Wavelength is the length from one peak of a wave to the next, while frequency is the amount of waves present in a unit of time. The greater the wavelength the smaller the frequency. The smaller the wavelength, the bigger the frequency.
Answer:
The magnitude of the change in gravitational potential energy of the earth-athlete system over the course of the race is 643,536Joules
Explanation
Potential energy is one of the form of mechanical energy and it is defined as the energy possessed by a body due to virtue of its position. When the body is under gravity, it possesses an energy called the gravitational potential energy.
Gravitational potential energy is expressed as shown:
GPE = mass × acceleration due to gravity × height
Given mass of athlete = 80kg
height covered = 820m
acceleration due to gravity = 9.81m/s
GPE = 80×9.81×820
GPE = 643,536Joules
Answer:
The moon is 400x smaller but it's also 400x closer so it looks the same size even though it's not
Explanation:
The increase the magnitude of the electric force ;
1) The charges on the objects must be increased
2) The distance of separation between the objects must be reduced.
<h3>
What is electric field?</h3>
The term electric field has to do with the region where the electric force on an object is expirieced. We must the note thate electric force is a result of the influence of a charge on another.
The increase the magnitude of the electric force ;
1) The charges on the objects must be increased
2) The distance of separation between the objects must be reduced.
Learn more about Charges:brainly.com/question/2526815
#SPJ1