Answer:
Cost = $ 3,995
Explanation:
Let's start by looking for the energy consumed, which is the power over time
E = P t
The power is 65 W, the time is 12 h each day, in a period of 30 days the time is
t = 12 30 = 360 h
E = 65 360
E = 23,500 W h
We reduce to KW h
1 kW = 1000 W
E = 23.5 kW h
Let's use a direct ratio rule (rule of three) to find the cost
Cost = 23.5 17.0
Cost = 399.5 c
Cost = $ 3,995
Answer:
Curves around objects
Explanation:
Diffraction is a property of light described by bending of light around an object. This ability of light to bend around edges has facilitated optical effects of light where there is interference of light waves. Other properties of light are: reflection, refraction, polarization, scattering of light, and interference of light.
0.616 is the distance from the top
of the building to the top of the window.
Answer:
The value is 
Explanation:
From the question we are told that
The speed of the rope with hook is 
The angle is 
The speed at which it hits top of the wall is 
Generally from kinematic equation we have that
Here h is the height of the wall so
![[16.3 sin (65)]^2 = [24.1 sin (65)] ^2+ 2 (-9.8)* h](https://tex.z-dn.net/?f=%5B16.3%20sin%20%2865%29%5D%5E2%20%3D%20%20%5B24.1%20sin%20%2865%29%5D%20%5E2%2B%20%20%202%20%28-9.8%29%2A%20h)
=>
