Why do telescopes give modern astronomers an advantage over people in the past

A constant speed has a slope of zero on a graph because no acceleration is taking place. True or False.

Two current-carrying wires are perpendicular to each other. The current in one wire flows vertically upwardand the current in the other wire flows horizontally toward the east. The horizontal wire is 1 m south of the vertical wire.

180W during 5min is how much energy?

What energy is being transformed when a tennis racket hits a tennis ball and What is the new type of energy after the transformed energy

True or False : All Eukaryotes have cell walls?

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.]