A 6260-kg satellite is in a circular earth orbit that has a radius of 3.17 × 107 m. A net external force must act on the satellite to make it change to a circular orbit that has a radius of 8.61 × 106 m. What work must the net external force do? Note that the work determined here is not the work Wift done by the satellite's engines to change the orbit. Instead, the work W is W=Wift + Wgravitational, Where Wgravitational is the work done by the gravitational force. Number Units

A 6260-kg satellite is in a circular earth orbit that has a radius of 3.17 × 107 m. A net external force must act on the satellite to make it change to a circular orbit that has a radius of 8.61 × 106 m. What work must the net external force do? Note that the work determined here is not the work Wift done by the satellite's engines to change the orbit. Instead, the work W is W=Wift + Wgravitational, Where Wgravitational is the work done by the gravitational force. Number Units

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter13: Gravitation

Section: Chapter Questions

Problem 66AP: Find the speed needed to escape from the solar system starting from the surface of Earth. Assume...

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Find the speed needed to escape from the solar system starting from the surface of Earth. Assume there are no other bodies involved and do not account for the fact that Earth is moving in its orbit. [Hint: Equation 13.6 does not apply. Use Equation 13.5 and include the potential energy of both Earth and the Sun. Substituting the values for Earth’s mass and radius directly into Equation 13.6, we obtain vesc=2GMR=2(6.67 10 11Nm2/kg2)(5.96 10 24kg)(6.37 106m)=1.12104m/s That is about 11 km/s or 25,000 mph. To escape the Sun, starting from Earth’s orbit, we use R=RES=1.501011m and MSum=1.991030kg . The result is vesc=4.21104m/s or about 42 km/s. We have 12mvesc2GMmR=12m02GMm=0 Solving for the escape velocity,
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NWP Assessment Player wHomework 4 (Chapters 6 - 7) + Homework 4 (Chapters 6 - 7) -/ 1 Question 3 of 10 View Policies Current Attempt in Progress A 6260-kg satellite is in a circular earth orbit that has a radius of 3.17 x 107 m. A net external force must act on the satellite to make it change to a circular orbit that has a radius of 8.61 × 106 m. What work must the net external force do? Note that the work determined here is not the work Wift done by the satellite's engines to change the orbit. Instead, the work W is W = Wift + Wgravitational, where Wgravitational is the work done by the gravitational force. Number Units eTextbook and Media Attempts: 0 of 5 used Submit Answer Save for Later MacBook Air 80 888 F6 F7 FB F9 F2 F3 F4 F5 %23 2$ & 3 4 5 6. 7 8. E Y T
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INAL LAAM ana sayfası Takvim Nişanlar Tüm dersler Course dashboard A particle of 0.5kg of mass is moving with a constant speed in a circular path of radius (r= 2m) such that its centripetal acceleration is a=50 m/s?. What is the power delivered to the particle by forces acting on it? A) 500W B) 400W C) 250W D) 150W E) 50W Lütfen birini seçin: O A B
A rocket with mass 4.00x103 kg is in a circular orbit of radius 7.30x10 m around the earth. The rocket's engines fire for a period of time to increase that radius to 8.80x106 m, with the. orbit again circular. What is the change in the rocket's kinetic energy? Does the kinetic energy increase or decrease? Express your answer with the appropriate units. Enter positive value if the kinetic energy increases and negative value if the kinetic energy decreases. AK = Value Submit Request Answer Part B What is the change in the rocket's gravitational potential energy? Does the potential energy increase or decrease? Express your answer with the appropriate units. Enter positive value if the gravitational potential energy Increases and negative value if the gravitational potential energy decreases. AU= Value 6 Units Submit Request Answer Units ?