Astar's apparent magnitude is most closely related to which of the following? select all that apply.
a. radius.
b. luminosity.
c. distance from earth.
d. absolute magnitude. e. surface temperature.

Explain to someone who knows nothing about fossils the study of invertebrate paleontology and how it scientists understand the history of the earth. be sure your explanation contains a minimum of two complete sentences.

Which terms describe the purpose of antennas on devices that use radio waves? transmit and receivemodify and amplifyamplify and receivemodify and transmit

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?