Acar is moving with a constant velocity of 25 m/s. which of the following is true?
a) the force from the engine is greater than all the forces of friction.
b) the net force on the car is zero.
c) the inertia is changing.
d) the forces of friction are proportional to the acceleration of the car.
e) all of the above.

Write maxwell's equations and discuss the terms involved and the results of each equation in classical electrodynamics. if it is possible to write these equations in integral form, give the integral forms. find the wave equation for electromagnetic waves from the maxwell equations. what is the propagation velocity of electromagnetic waves in space according to the wave equation you find?

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?

The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?