What is the build up of electrons on a surface

In which state of matter is there no particle motion A gas B liquid C plasma D solid E none of above

A car traveling at a speed of 13 meters per second accelerates uniformly to a speed of 25 meters per second in 5.0 seconds. A truck traveling at a constant speed covers the same total distance as the car in the same 5.0 second interval.

Perid 4 of the periodic table contains the elements potassium, calcium, and copper. Which is least reactive?

If your front lawn is 17.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1050 new snow flakes every minute, how much snow in kilograms accumulates on your lawn per hour? assume an average snow flake has a mass of 1.90mg.

Identity the kinds of force in the following activities A lemon falls from the tree to ground

Work is done on a ball when a soccer player kicks it. Is the player still doing work on the ball as it rolls across the ground? Explain

Light of wavelength 441.1 nm falls on two slits spaced 0.29 mm apart. What is the required distance from the slits to the screen if the spacing between the first and second dark fringes is to be 4.0 mm?

A car advertisement states that a certain car that emily miller loves can accelerate from rest to 70 km/h in 7 seconds. Find the cars average acceleration

A stone is thrown up from a platform with an initial velocity of 19.8 m/s. if the top of the platform is taken to be the ground level, calculate, (a) the time taken to reach the maximum height, (b) the maximum height reach by the stone (c) its

One of the principles of psychophysics is that change in the physical environment is not always matched by equal changes perceptually. If Madison Wilson were creating a new drink, what would psychophysics tell her?