Homework Answers
Ans: They are in a free fall.
Because free fall is defined as the motion of object acted by only gravitational force. In this case also the astronaut and the ISS is acted by only gravitational force and there is nothing to push back them, so they fell weightless.
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Astronauts on the International Space Station are weightless because Og is very small, although not zero....
The International Space Station provides a weightless environment for the astronauts because it is located beyond...
The International Space Station provides a weightless environment for the astronauts because it is located beyond the gravitational field of Earth. True/False?
#1. ["Massing' Astronauts) Inside the International Space Station orbiting Earth, ordinary scales don't work for measuring...
#1. ["Massing' Astronauts) Inside the International Space Station orbiting Earth, ordinary scales don't work for measuring weight since the space station is in free fall. However, the masses of astronauts can be determined using an oscillatory device known as an inertia balance that relies on springs rather than gravity for its restoring force. A 22.5 kg chair attached to a spring takes 1.30 s to complete one cycle of oscillation. With an astronaut sitting in the oscillating chair with feet...
You sometimes hear about "zero gravity" in places like the International Space Station. Since we know...
You sometimes hear about "zero gravity" in places like the International Space Station. Since we know Newton's Law of Gravity, we know that gravity doesn't just "stop" anywhere. What is the ratio of the gravitational force from the earth on something in the International Space Station (orbiting an average of 385 km above Earths surface) to the gravitational force from the earth on that same object when it is on the ground?
"apparent weightlessness” Which of the following statements explains why astronauts seem weightless while in an orbiting...
"apparent weightlessness” Which of the following statements explains why astronauts seem weightless while in an orbiting spacecraft? a) There is no gravity in space b) They are in a state of free fall, accelerating toward the earth at the same rate as the spacecraft c) They are far enough from the earth that gravity is not able to reach them d) None of the above
What happens if you blow bubbles into a glass of lemonade on the international space station?...
What happens if you blow bubbles into a glass of lemonade on the international space station? Since you are weightless in orbit, there's no up, down, left nor right. We define down on the Earth surface as the direction things tend to fall, down. On Earth bubbles rise if blown into a glass of lemonade (with a straw and a cover).
The space station orbits Earth about 400 km above the surface of Earth (NASA.gov). At this...
The space station orbits Earth about 400 km above the surface of Earth (NASA.gov). At this height the force of gravity from Earth is only about 10% less than on the surface of Earth. Using the concepts of circular motion and gravitational forces explain the following: 1. Why does the space station not fall down? 2. Why do the astronauts float inside the space station?
Astronauts in the International Space Station must work out every day to counteract the effects of...
Astronauts in the International Space Station must work out every day to counteract the effects of weightlessness. Researchers have investigated if riding a stationary bicycle while experiencing artificial gravity from a rotating platform gives any additional cardiovascular benefit. What frequency of rotation, in rpm, is required to give an acceleration of 1.4g to an astronaut's feet, if her feet are 1.1m from the platform's rotational axis?
4. A proposed space station has the shape of a large wheel with the living and...
4. A proposed space station has the shape of a large wheel with the living and working space at the very outside edge (the rim) of the wheel. The space station rotates about an axis through the center, resulting in a normal force on the people inside, simulating gravity. The radius of the wheel is R = 44.6 m. When a person inside the station with a mass M = 65.4 kg steps on a scale, the measured "weight" is...
Please explain why the correct answer is correct, and why the others can't be. 1. Why...
Please explain why the correct answer is correct, and
why the others can't be.
1. Why do astronauts on the International Space Station float, apparently weightless, rather than stand on the floor? (The space station is about 400km above the surface of the Earth) a. There is no gravity in space b. The gravitational field is virtually zero c. The astronauts have no mass in space d. The astronauts and space station are both in freefall e. The gravitational force...
QUESTION 17 The International Space Station which presently has mass of about 420,000 kilograms, maintains an orbit wit...
QUESTION 17 The International Space Station which presently has mass of about 420,000 kilograms, maintains an orbit with an altitude of between 330 and 435 kilometers (205 and 270 miles respectively) above the Earth surface by means of re-boost maneuvers using the engines of the Zvezda module or visiting spacecraft to compensate for 2 km/month orbital decay due to the atmospheric drag. Calculate the following for the low orbit of the ISS (330 kilometers above the Earth surface), assuming that...
#1. ["Massing' Astronauts) Inside the International Space Station orbiting Earth, ordinary scales don't work for measuring weight since the space station is in free fall. However, the masses of astronauts can be determined using an oscillatory device known as an inertia balance that relies on springs rather than gravity for its restoring force. A 22.5 kg chair attached to a spring takes 1.30 s to complete one cycle of oscillation. With an astronaut sitting in the oscillating chair with feet...
4. A proposed space station has the shape of a large wheel with the living and working space at the very outside edge (the rim) of the wheel. The space station rotates about an axis through the center, resulting in a normal force on the people inside, simulating gravity. The radius of the wheel is R = 44.6 m. When a person inside the station with a mass M = 65.4 kg steps on a scale, the measured "weight" is...
Please explain why the correct answer is correct, and
why the others can't be.
1. Why do astronauts on the International Space Station float, apparently weightless, rather than stand on the floor? (The space station is about 400km above the surface of the Earth) a. There is no gravity in space b. The gravitational field is virtually zero c. The astronauts have no mass in space d. The astronauts and space station are both in freefall e. The gravitational force...
QUESTION 17 The International Space Station which presently has mass of about 420,000 kilograms, maintains an orbit with an altitude of between 330 and 435 kilometers (205 and 270 miles respectively) above the Earth surface by means of re-boost maneuvers using the engines of the Zvezda module or visiting spacecraft to compensate for 2 km/month orbital decay due to the atmospheric drag. Calculate the following for the low orbit of the ISS (330 kilometers above the Earth surface), assuming that...
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