What is the change in gravitational potential energy of a 65.5 kg astronaut lifted from Earth’s surface into a circular orbit of altitude 450 km. Plz don't use a periously answered questions and plz draw a diagram and explain

help on 3 part question please  A. Calculate the work done by a force of 29 Newtons that moves a box through a displacement of 28 meters. B. Calculate the work done to lift a 31 kg box against gravity a height of 16 meters. C. Calculate the power if 3287 Joules of work gets done in 19 seconds

Needs Complete handwritten solution with 100 % accuracy don't use chat gpt or ai plz plz plz.

Part B: Gravitational Potential Energy 1. Mathematically we describe the gravitational potential energy (GPE) at a given position when GMm r which is the using the equation: E, = result of the calculus work describing the area under the graph in Part A Q#2. Distance from Eg centre of earth R. 2Re 3R. 4R. 6R. 8Re Really, really far Note! Really, really far means an infinitely large distance

13. You learned in Science that Energy is conserved, that Potential Energy must balance Kinetic energy. Mathematically, that means: 1 mgh =-mv², where mgh is Potential %3D Energy 1 and -mv² is Kinetic energy. Reminder that m is 2 mass, g is the acceleration due to gravity, h is height and v is velocity. a) Balance this equation such that the sum of Potential and Kinetic Energy is zero (hint: gravity is negative). b) Solve this equation for v; again, you only need the Algebra you've learned! (hint: don't worry about the negative at the end!) Show your work! + tv MAR 18

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If the velocity of a horizontally moving body is doubled its gravitational potential energy... Please explain MCQ choice (with calculations where needed) in the Rationale section!   A. gets doubled B. does not change C. becomes half D. becomes 4 times bigger

Hello I need help finding the solutions for these parts of the question. Especially the last part. Please and thank you.

Part A What is the horizontal force on the skater? Express your answer with the appropriate units. F = Submit Part B 0 μÅ Value Request Answer Units What is the ratio of this force to the skater's weight? ?

Instruction: Read and understand this lesson. Write your answer in a long bond paper/yellow раper. Problem Solving: A. Gravitational Potential Energy 1) Climbing a vertical rope is difficult. You have to lift your full body weight with your arms. If your mass is 60 kg and you climb 2.0 m, by how much do you increase your gravitational potential energy? 2) Ten days after it was launched toward Mars in December 1998, the Mars Climote Orbiter spacecraft (mass 629 kg) was 2.87 x 10 km from the earth and traveling at 1.20 x 10 km/h relative to the earth. At this time, what were: a) The spacecraft's kinetic energy relative to the earth and b) The potential energy of the earth-spacecraft system?