At room temperature, glass used in windows actually has some properties of a liquid. it has a very slow, viscous flow. (viscosity is the property of a fluid that resists internal flow. for example, lemonade flows more easily than fudge syrup. fudge syrup has a higher viscosity than lemonade.) glass does not become a true liquid until temperatures are greater than or equal to 515515°c. find the fahrenheit temperatures for which glass is a liquid. hint: use the formula

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.

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr