At what ∆T do the SunMaxx Solar TitanPower ALDH29-27A (flat-plate) and Duda Energy Duda Solar SC5820 (cylinder) solar collectors have the same efficiency? Assume the average irradiance is 1000 W/m2. Base your calculation on the quadratic efficiency equation for each collector. (LO 3)

At , the SunMaxx Solar TitanPower ALDH29-27A (flat-plate) and Duda Energy Duda Solar SC5820 (cylinder) solar collectors will have the same efficiency.

Explanation:

From the given information, the objective that is meant to be carried out is to determine at what ∆T does the SunMaxx Solar TitanPower ALDH29-27A (flat-plate) and Duda Energy Duda Solar SC5820 (cylinder) solar collectors have the same efficiency.

Provided that:

The average irradiance = 1000 W/m²

So using the calculation based on the quadratic efficiency equation for each collector.

Stefan Boltzmann constant =

The expression for irradiance can be represented as Q/A

where;

Q = heat radiated and A = Are of the surface

Thus;

Irradiance (Q/A) =

1000 =

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

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.