Answer:x=79,202.77 ft
Explanation:
Given
plane is at a height of 32000 ft
angle of depression is ![22^{\circ}](https://tex.z-dn.net/?f=22%5E%7B%5Ccirc%7D)
let x the distance between the point directly below the plane and airport be x
from diagram
![\tan (22)=\frac{height}{x}](https://tex.z-dn.net/?f=%5Ctan%20%2822%29%3D%5Cfrac%7Bheight%7D%7Bx%7D)
![\tan (22)=\frac{32000}{x}](https://tex.z-dn.net/?f=%5Ctan%20%2822%29%3D%5Cfrac%7B32000%7D%7Bx%7D)
x=79,202.77 ft
distance between plane and airport
![\sin (22)=\frac{32000}{h}](https://tex.z-dn.net/?f=%5Csin%20%2822%29%3D%5Cfrac%7B32000%7D%7Bh%7D)
![h=\frac{32000}{\sin (22)}](https://tex.z-dn.net/?f=h%3D%5Cfrac%7B32000%7D%7B%5Csin%20%2822%29%7D)
h=85,422.94 ft
I don't understand the language.....
The photoelectric effect is obtained when you shine a light on a material, resulting in the emission of electrons.
The kinetic energy of the electrons depends on the frequency of the light:
K = h(f - f₀)
where:
K = kinetic energy
h = Planck constant
f = light frequency
f₀ = threshold frequency
Rearranging the formula in the form y = m·x + b, we get:
K = hf - hf₀
where:
K = dependent variable
f = <span>indipendent variable
h = slope
hf</span>₀ = y-intercept
Every material has its own threshold frequency, therefore, what stays constant for all the materials is h = Planck constant (see picture attached).
Hence, the correct answer is
C) the slope.
Answer: a) 10.4km
b) 0.62h
C) 17km/h
d) 9.1km/h
Explanation:
A) suppose you move in the positive direction of an x axis, from a first position of x1 = 0 to a second position of x2 at the station. That second position must be at x2 = 8.4 km + 2.0 km = 10.4 km.
B) time interval Dtwlk (= 0.50 h), but we don't know the driving time interval Dt/dr. However, we know that for the drive the displacement Dx/dr is 8.4 km and the average velocity vavg,dr is 70 km/h.
This average velocity is the ratio of the displacement for the drive to the time interval for the drive:
dv = dx/ dt
dt = dx/dv = 8.4/70 = 0.12h
t = ti + two
t = 0.12 + 0.50 = 0.62h
C) avg speed for the entire trip is the ratio of the displacement of 10.4 km for the entire trip to the time interval of 0.62 h for the entire trip.
Avg v = distance/time
10.4/0.62 = 16.8km/h
D) average speed is the ratio of the total distance you move to the total time interval you take to make that move. The total distance is 8.4 km + 2.0 km + 2.0 km = 12.4 km. The total time interval is 0.12 h + 0.50 h + 0.75 h = 1.37 h.
Avg speed = 12.4/1.37 = 9.1km/h
Answer:Well it depends on what the heavy load is but it is mostly easy to do it with a crowbar because it gives you leverage and it is stronger.
Explanation:
Your welcome I think.