The conversion factor relating miles to meters is 1mile=1610m. the speed of light is 3.00×108 m/s. how fast is this in miles per hour (miles/h)?

The Speed of Light is 3 × 10⁸ Meters per Second

It means In one second Light travels a Distance of 3 × 10⁸ Meters

We know that One Hour is made up of 60 minutes and Each Minute has 60 seconds.

One Hour has 60 × 60 = 3600 seconds

In 3600 seconds Light Travels a Distance of 3 × 10⁸ × 3600 Meters

In One hour Light Travels a Distance of 3 × 10⁸ × 3600 Meters

We know that One Mile = 1610 Meter

3 × 10⁸ × 3600 Meters in Miles = (3 × 10⁸ × 3600)/1610 = 6.7 × 10⁸ Miles

The Speed of Light in Miles per Hour is 6.7 × 10⁸

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.

answer///scientific method;