Por efecto del aumento de la temperatura, la roca se funde transformándose en magma. Si la temperatura al interior de la Tierra es tan elevada como para fundir roca, ¿por qué el suelo que pisamos no está a altas temperaturas?

low freq = 100 mhz

low wavelength =101.7m

length = 3x10^8/freq

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

the components of a vector are the parts of the vectors that are to each other.

b perpendicular