What is the difference speed & velocity?

The number of electrons in the outer ring of the elements phosphorus, iodine, vanadium, cobalt, sodium, nitrogen, helium, gold, zinc

a meteor is falling towards the earth. If the mass and radius of the earth are 6*10^24 kg and 6.4*10^6 m respectively. Find the hieght of the meteor where its acceleration due to gravity is 4m/s^2

How far does a car go in 10 seconds at the speed of 44m/s

Light strikes a mirror's surface at 33 degrees to the surface. what will the angle of reflection be? what is the angle betwwen incident ray and reflected way

A 40-kilogram crate is at rest on a level surface. If the coefficient of static friction between the crate and the surface is 0.69, what horizontal force is required to get the crate moving?

What is the mass of an object with a density if 4.0g/cm3 that displaces 3.0cm3 of water?

aluminum has 13 electrons. how many electrons are found in the outermost energy level for this atom which energy level is the outermost

For an ideal fluid flowing through a horizontal pipe, Bernoulli's principle and the continuity equation state that the pressure within the pipe does which of the following? (Assume measurements are taken along the pipe in the direction of fluid flow.

Which of the following is not part of testing a hypothesis? A. Making a theory B. Making a model C. Gathering evidence D. Collecting data

What are two types of charges that particles possess