Answer:
The oldest functioning car is La Marquise, a steam-powered, four-wheeled, four-seater vehicle, manufactured by De Dion Bouton et Trépardoux (France) in 1884; three years later it won the world's first automobile race, powering along the 30.5-km (19-mile) track at an average of 42 km/h (26 mph) from Paris to Neuilly, .
Chemical to thermal to electrical current: Burning of coal or natural gases. Gravitational potential to kinetic to electrical current.
Answer:
a) always. b) electric field lines are defined by the path positive test charges travel.
Explanation:
By convention, field lines always follow the direction that it would take a positive test charge (small enough so it can´t disrupt the field created by a charge distribution), under the influence of an electric field, at the same point where the test charge is located.
So any positive charge, subject to an electric field influence, moves along the field line that passes through its current position, in the same way that a positive test charge would.
We could say also that the electric force on a positively charged particle is in the same direction as the electric field that produces that force (due to some charge distribution) , which is true, but it doesn´t explain why.
Answer:
Explanation:
Use that:
Then use the 2nd Newton's Law of Motion:
At x = 0.3 and y = 0.6, we can find the acceleration as:
(in SI unit)
Then the magnitude of the acceleration on that point is:
(SI Unit)