Calculate the gravitational pull of Earth on a 75 kg astronaut in a space shuttle that is in an orbit 100 km from the surface of the Earth. What is the weight of the same astronaut near the surface of the Earth?

How much heat is required to convert 0.3 kg of ice at 0°c to water at the same temperature

Which of these questions might a character ask if the conflict is man versus self? a. which path should i take to better myself? b. which boulder will be too heavy for me to carry? c. which friend is going to ditch me today? d. all of the above

Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j