The International Space Station is orbiting at an altitude of about 370 km above the earth's surface
The mass of the earth is 5.97 × 1024 kg, the radius of the earth is 6.38 × 106 m, and
G = 6.67 × 10-11 N ? m2/kg2. Assuming a circular orbit,
(a) what is the period of the International Space Station's orbit?
(b) what is the speed of the International Space Station in its orbit?
What will be an ideal response?
Answer: (a) 5.52 × 103 s (b) 7.69 × 103 m/s
You might also like to view...
If the size of our solar system were scaled down to a radius of 1 kilometer, approximately how far away would the nearest stars be on this scale?
A) several hundred kilometers B) several million kilometers C) several thousand kilometers D) several billion kilometers
A bolt of lightning strikes the ground 200 m from a 100-turn coil oriented vertically and with the plane of the coil pointing toward the lightning strike. The radius of the coil is 0.800 m and the current in the lightning bolt falls from 6.02 × 106 A to zero in 10.5 ?s. What is the voltage induced in the coil over this time period? [A question for future electrical engineers: is there any way to get lightning to strike repeatedly at the same point?]
?
What will be an ideal response?
Jamal pulls a 250-N sled up a 29.0° slope at constant speed by a force of 200 N. Near the top of the hill he releases the sled. With what acceleration does the sled go down the hill?
a. 7.84 m/s2 b. 9.30 m/s2 c. 3.32 m/s2 d. 1.66 m/s2 e. 2.66 m/s2
In which system is heat usually transferred from the cooler part to the warmer part?
a. a stove as it heats up water b. a refrigerator that is running c. an electric fan that is running d. none of the above, because it is impossible to transfer heat in this manner