Spacecraft i, containing students taking a physics exam, approaches the earth with a speed of
0.660
c
(relative to the earth), while spacecraft ii, containing professors proctoring the exam, moves at
0.220
c
(relative to the earth) directly towards the students. the professors stop the exam after 40.0 min have passed on their clock.

a. for what time interval does the exam last as measured by the students?

b. for what time interval does the exam last as measured by an observer on earth?

What must be the same for any two resistors that are connected in series ? a. the potntial diffrence across each b. the rate at which charge moves through each c. the rate at which energy is used by each d. the resistance to the flow of charge of each

(science)study the following ocean currents map. an ocean currents map is shown. on the map the locations for san diego, california and savannah, georgia are marked. there is a looping current from the north past san diego and a looping current from the south near savannah which statement is most likely correct about the average temperatures in san diego, california as compared to savannah, georgia? it is higher in savannah because of the cool ocean currents from the south. it is higher in savannah because of the warm ocean currents from the north. it is lower in san diego because of the warm ocean currents from the south. it is lower in san diego because of the cool ocean currents from the north.

When an object is heated it contracts. a. true b. false