Why have reusable launch vehicles generally been more expensive than expendable ones?     reusable rockets have to make a two-way trip     reusable rockets require more labor to produce     reusable engines are made out of more costly materials     recovering reusable engines after launch is expensive

Q: How much gravitational potential energy exists between the planet and moon?

A:

Q: Hypergolic (hydrazene) engines are typically used     only on interplanetary probes     to slow…

A: Required :  Use of Hypergolic engines.

Q: For which value of energy, the motion is bounded and non-circular? * I Zur? E1 E2 = 0 E1 E2 О вз…

A: We will answer the first question since the exact one wasn't specified. Please resubmit a new…

Q: 1. If you are going to launch a 10,000 kg spacecraft from Earth, (a) how much kinetic energy it must…

A: (a) Given: m=10000kg    The escape velocity of the spacecraft w.r.t. earth is given by :…

Q: At perihelion, a planet will have     maximum energy of position and maximum energy of motion…

A: A central force is a function of position only. The central force acting on a particle is always…

Q: Why does a satellite burn up when it descends into the atmosphere when it doesn't burn up when it…

A: A satellite is moving at a high speed in the space through vacuum due to the absence of air…

Q: A penguin can walk across an icy surface because of: Newton's First Law Newton's Second Law O…

A: According to Newton's first law of motion , an object tends to remain in it's inertial state of…

Q: Calculate the gravitational potential energy of a 10 kg mass located 5 meters above the surface of…

A: The formula for the gravitational potential energy near the earth's surface is given as,…

Q: Derive a formula that relates the displacement, final velocity, time and constant acceleration of an…

A: Let u be the initial distance, v be the final velocity, a be the acceleration and S be the distance.…

Q: What is the value of gravitational constant G ?

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Q: The escape velocity of a projectile from the earth is approximately ___________ a) 7km/sec b)…

A: B

Q: When the planet Saturn is furthest from Earth it is 1,37 x 1012 m away. The planet Saturn has a mass…

A: Write a given values of this question.

Q: If a rocket were launched instead of a cannonball, what minimum speed would be required for the…

A:

Q: m 4: compare the kin energy kg oving at hat of a 75 kg astronaut in orbit moving at 27,500 km/h.…

A: mass of truck = Mt = 20,000 kgspeed of truck = Vt = 100 km/h = mass of astronaut = Ma = 75 kgspeed…

Q: What minimum speed would a rocket need to leave Earth's orbit if fired instead of a cannonball

A: The minimum velocity that needed to launch an object into space so that it does not return back to…

Q: 15. If a ball thrown upward and has a maximum gravitational PE of 5.85 Joules, what is its maximum…

A: energy can neither be created nor be destroyed it can transform from one form to another.

Q: Calculate the increase in velocity (in m/s) of a 3830 kg space probe that expels 3160 kg of its mass…

A: Initial mass of space probe (M) = 3830 kg Mass expelled = 3160 kg Final mass (m) = 3830-3160 kg =…

Q: A piece of metal has a measured mass of 5.00 g when measured in air, 3.00 g in water, and 3.24 g in…

A:

Q: A 1500-kg satellite is moved from an orbit of 2 Earth radii to an orbit of 2.5 Earth radii. How much…

A: Mass of the satellite, m = 1500 kgMass of the Earth, M = 5.98×1024 kgRadius of the Earth, R =…

Q: Use the values below to answer this numerical-response question. Gravitational Constant (G) = 6.67 x…

A:

Q: What is the difference between a rocket and a satellite? How are they related?

A: Here we have to discuss the basic difference of rocket and satellite and how it relates to each…

Q: what is the value of gravitational constant?

A: Gravitational constant is the proportionality constant that appears in Newton’s law of universal…

Q: Which of the following is NOT an advantage of returning re-usable rocket stages to Earth by landing…

A: Answer: they can splash down in the ocean easily Reusable launch system provides the reuse of some…

Q: Which part of the rocket carries the cargo?

A: Generally the rocket made up of 4 major systems  1.structural system  2. Payload system 3.guidance…

Q: 17. If the kinetic energy of a satellite in orbit around a planet is 4.00 x 10¹0 J, then the (1)…

A: For gravitational force kinetic energy of the satellite is given by:                Also total…

Q: On planet #5, a stone dropped from a height of 27.2 m above the ground will hit the ground at a…

A:

Q: The purpose of the Reaction Control Subsystem (RCS) on the Space Shuttle is to make the…

A: Question: The purpose of the Reaction Control Subsystem (RCS) on the Space Shuttle is to Answer : d…

Q: Solar Impulse 2 is a Swiss long-range experimental solar-powered aircraft project. What are the key…

A: Solar Impulse is the name of the project's two operating aircraft, as well as a Swiss long-range…

Q: What force is needed to accelerate a 25kg mass at 20 ms -2 ?

A: Answer             Force = 500N Solution

Q: you know about kinetic energy and energy conservation, show that the expression for the escape…

A: To find expression for escape velocity we just have to use energy conservation Initially we have…

Q: A comet goes around the sun in an elliptical orbit at its farthest point 320 million miles from the…

A: Given data *The furthest distance between the comet and the sun is r1 = 320 million miles = 320 ×…

Q: Suppose a planet is discovered orbiting a distant star with 13 times the mass of the Earth and 1/13…

A: Given: Mass = 13 times mass of earth. Radius = 1/13 radius of earth.

Q: How fast must a satellite leave Earth's surface to reach an orbit with an altitude of 895 km?

A: Altitude, h = 895 km = 895000 mWe know, Mass of earth, M = 5.98×1024 kgRadius of earth, R = 6.38×106…

Q: The reason that the moon does not crash into the Earth is that   Which below is correct? the…

A: The moon does not crash into the Earth.

Q: 4) You are planning to design a rocket to go to mars. You have access to two types of fuel with the…

A: As comparison with fuel A and B, the denser fuel A gives more energy as comparison with B. Like if…