Spacecraft i, containing students taking a physics exam, approaches the earth with a speed of
...
Physics, 09.12.2019 23:31, josh200508
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?
Answers: 1
Physics, 21.06.2019 18:00, Pumpkinputters
Awind turbine is initially spinning at a constant angular speed. as the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.173 rad/s2. after making 2870 revolutions, its angular speed is 132 rad/s. (a) what is the initial angular velocity of the turbine? (b) how much time elapses while the turbine is speeding up?
Answers: 1
Physics, 22.06.2019 19:00, opgbadwolf5
The law of reflection states that the angle of reflection is equal to the angle of
Answers: 1
Physics, 22.06.2019 19:30, NewKidnewlessons
Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)
Answers: 3
Mathematics, 04.06.2020 21:01
Mathematics, 04.06.2020 21:01
Mathematics, 04.06.2020 21:01
Mathematics, 04.06.2020 21:01