All triangles have a total of 180° in them.
So to find x, simply take 50° and 100° from 180°:
x = 180 - 100 - 50
= 30°
So x = 30°, and thus option D
To find the volume of the model of the Earth, you will use the formula (rule) for finding the volume of a sphere.
You will divide the diameter by 2 to get the radius. 6.5/2 = 3.25 m
V = 4/3 x pi x r^3
= 4/3 x 3.14 x 3
V = 143.72 cubic meters
The volume of the model is approximately 143.72 cubic meters.
502.4 but idk how you would get that answer im just going off of what marielosr said...
Answer:
5.3×10⁻¹¹ m
Step-by-step explanation:
Applying,
v = 2πr/t................ Equation 1
Where v = speed of the electron in the orbit, r = radius of the orbit, t = time, π = pie
make r the subject of the equation
r = vt/2π................ Equation 2
From the question,
Given: v = 2.2×10⁶ m/s, t = 1.5×10⁻¹⁶ s
Constant: π = 3.14
Susbtitute these values into equation 2
r = (2.2×10⁶×1.5×10⁻¹⁶)/(3.14×2)
r = (3.3×10⁻¹⁰)/6.28
r = 5.3×10⁻¹¹ m
Hence the radius of the orbit is 5.3×10⁻¹¹ m