How far away is the Sun from the Earth?

A train with a mass of 25000 kg increases it's speed from 10 m/s to 25 m/s in 20 seconds. assume that the acceleration is constant and that you can neglect friction what is the acceleration of the train

What are some methods humans have used to control flooding and what has been done to worsen the effects of flooding?

Interaction between two charged particles is called

When a body falls to the earth, the earth also move up to meet it but the earth motion is not noticeable. why?

True or false; Materials that are poor conductors are poor insulators

What energy do electrons have when they are farther away from the nucleus?

200 525000 lololo Boat A is 10 km north of a port. Boat B is 5 km east of the same port. Boat A sails in a straight line towards boat B. Work out the bearing on which boat A sails.

Is Li greater than He on the periodic table?

White light falls on a yellow filter, if: (a) A green filter is placed behind a yellow filter, what is the colour of the light that will emerge from the green filter?

Calculate the energy equivalent in joules of the mass of a proton. [Show all work, including the equation and substitution with units.]