A train departs from its station at a constant acceleration of 5m/s2. What is the speed of the train at the end of 20 seconds

Identify the following as a suspension or a colloid. sand in water

Which of the following statements describes the interaction between magnetic poles? A. Like poles attract each other. B. Like poles repel each other, and opposite poles attract each other. C. Opposite poles repel each other. D.

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.

Is gravity considered a constant or field force? explain

Sails on sail boats take advantage of which type of energy?

How accurate are tornado tools?

Asteroids are most likely to be A. remnants of the early solar system. B. former moons of Jupiter. C. the remains of a shattered planet. D. captured comets.

The density of aluminum is 2.7 g/cm3. What is the volume of a piece of aluminum if its mass is 8.1 grams?

Which example gives all the necessary information to describe motion scientifically 1. The batter hit the ball into the stands at 90 m/s 2. A fan watched the length of the 130-m field for his favorite player 3.

Two slits separated by 0.10 mm are illuminated with green light (l = 540 nm). calculate the distance (in cm) from the central bright-region to the fifth bright band if the screen is 1.0 m away.