vf=vi+at
8.77=vi+1.77 x 3.33
8.77 = vi+5.8941
vi=2.8759
vf²=vi²+2ad
8.77²=2.8759²+2x 1.77 x d
76.9129=8.27 + 3.54d
d=19.39 m
Most of the substances have higher density in solid state. When we heated solids it change its state to liquid. After a few minutes the liquid will boil and after that it will change to gas. Gaseous state of matter has the lowest density. From this we can conclude that density decreases with increase in temperature.
Note the point: Water has higher density in 4℃, at its liquid state
Answer:
value of fs,max under the circumstances is
f = 42.56 N
Explanation:
The formula is µ = f / N, where µ is the coefficient of friction, f is the amount of force that resists motion, and N is the normal force. Normal force is the force at which one surface is being pushed into another.
So f = µN
f = 0.380 * 112
f = 42.56 N
Energy per unit of time is known as power
so here let say initial power is P in which energy E expended in time interval t
so we can say
now energy expended is double while it took half time
so new power expended will be
so here we can say that now the power expended will be 4 times the initial power
Answer:
d f(x) / dx = d (x^3 + 2 x^2 - 5) /dx = 3 x^2 + 4 x
(Use the rule for differentiation)
