John is setting up his new gaming PC, however he is worried about it overheating. He finds that the rate of heat loss (H), in W, that his cooling system can generate depends on the speed (V) and surface area (A) of his fans and the density of his coolant (rho).
A) Using the information provide above, determine the simplest expression that John can use to determine the rate of heat loss that his cooling system can generate.
B) After an initial test run John determines that his cooling system generates 45 W of heat loss. Calculate the amount of heat loss (H2), in W, that Mike expects his pump to do if its fan speed were 4.5 times greater and the coolant density was 2.5 times smaller.
C) If Mike wanted to reduce his fan speed by a factor of 3.1 in order to have his PC run silently, yet keep it dissipating the same amount of heat, by what factor (B) would he have to increase the surface area of his fans?

double the distance = divide strength by 4

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.