An astronaut has weight W on Earth. The astronaut travels to a planet that has a mass 8 times greater than Earth's mass, and its radius is 2 times greater than Earth's radius. What is the astronaut's weight on the planet?

Which transactions can increase the balance in a checking account? Check all that apply.

Which of the following statements are true? Select all correct responses. Choose all that apply. Choose all that apply. The total momentum of an isolated system is constant.

Which of the following situations would violate the second law of thermodynamics?

The relative hardness of a mineral can best be tested by a) scratching the mineral across a glass plate b. squeezing the mineral with calibrated pliers c. determining the density of the mineral d. breaking the mineral with a hammer

Which force plays the biggest role in keeping the planets in orbit?

What is the density of an unknown metal that has a mass of 158 g and a volume of 20 ml

An electron is located on the x axis at x0 = - 9.31*10-6 m. Find the magnitude and direction of the electric field at x = 9.39 * 10-6 m on the x axis due to this electron.

Earth attracts a person with a gravitational force of 7.0 * 102 newtons. What is the magnitude of the force with which the individual attracts Earth? 3.0 * 10² newtons 7.0 * 10² newtons 8.5 * 10² newtons 9.8 * 10² newtons

The productive cycle of a human is usually regulated by

Winston stands on the edge of a building's flat roof, 12 m above the ground, and throws a 147.0-g baseball straight down. the ball hits the ground at a speed of 18 m/s. what was the initial speed of the ball?