A 0.5530 kg ice cube at − 12.40 °C is placed inside a chamber of steam at 365.0 °C. Later, you notice that the ice cube has completely melted into a puddle of water. If the chamber initially contained 6.910 moles of steam (water) molecules before the ice is added, calculate the final temperature of the puddle once it settled to equilibrium. Assume the chamber walls are sufficiently flexible to allow the system to remain isobaric and consider thermal losses or gains from the chamber walls as negligible.

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.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.