An astronaut is standing on the surface of a planetary satellite that has a radius of 1.74 × 106 m and a mass of 7.35 × 1022 kg
An experiment is planned where a projectile needs to be launched straight up from the surface. What must be the minimum initial speed of the projectile so it will reach a height of 2.55 × 106 m above this satellite's surface? (G = 6.67 × 10-11 N ? m2/kg2)
1.83 km/s
You might also like to view...
Which one of the following is responsible for the "one-way" nature of time, i.e., for the distinction between past and future?
A) the law of inertia B) the law of conservation of energy C) the second law of thermodynamics D) the gravitational force E) the electromagnetic force
The Schwarzschild radius of a black hole depends on
A) only the mass of the black hole. B) the observationally measured radius of the black hole. C) the way in which the black hole formed. D) both the mass and chemical composition of the black hole.
A poor conductor of heat is a
A) poor insulator. B) good insulator. C) neither
A negative charge is moved from point A to point B along an equipotential surface. Which of the following statements must be true for this case?
A) The negative charge performs work in moving from point A to point B. B) Work is required to move the negative charge from point A to point B. C) No work is required to move the negative charge from point A to point B. D) The work done on the charge depends on the distance between A and B. E) Work is done in moving the negative charge from point A to point B.