Work = force × distance, assuming that the force is parallel to displacement.
Work L=75×5=375J
<span>BAKING A CAKE </span>
Chemical
change is a process where a current substance changes or is made into a new
type of substance. Unlike the physical change, which is reversible. Chemical change stays into a its new form. Take for
instance these -physical change- examples, making ice cubes. The process involves solidification or freezing
where the water becomes ice or solid but when it melts back to its original or typical
form with respect to temperature, it’s still water. When the paper is cut into
pieces it isn’t burned or exposed to a stimuli that can trigger immediate
change in its composition. It’s still the same. On the contrary, baking a cake involves
these different compositions or substances –flour, egg, yeast and etc. that is
baked to a cake, a newly formed unified substance of all the included
ingredients.
Power P is the amount of energy E transferred or converted per unit time t, and is expression is:
P = E/t
The necessary energy to lift the box its the work of against the Gravity Force, and is given by:
E = mgh
Then the power is:
P = E/t
P = mgh/t
P = (45 kg)(9.8 m/s²)(1.7 m )/ 30
P = 24.99 W
<h2>P ≈ 25 W</h2>
augskrvabag0agtuugxgicgix was came to Japan in hindi or at least a few years 6AM from diar in the same year
The force exerted by the person is 600 N because to find the original force you would add back 100 from friction
