Apiece of iron block moves across a rough horizontal surface before coming to rest. the mass of the block is 3.3 kg, and its initial speed is 3.2 m/s. how much does the block's temperature increase, if it absorbs 74% of its initial kinetic energy as internal energy? the specific heat of iron is 452 j/(kg · °c).
°c

Rise in temperature is given as

Explanation:

Initial kinetic energy of the block is given as

here we will have

m = 3.3 kg

v = 3.2 m/s

now we will have

now we will have

now we know that 74% of initial kinetic energy is absorbed as internal energy of the block

so the rise in temperature of the block is given as

the focus of lesson 1 is newton's first law of motion - sometimes referred to as the law of inertia. newton's first law of motion is often stated as. an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

explanation:

if they have a finite resultant