Answer:
B. coefficient
Explanation:
i dont have to explain right?
Answer:
a. 
b. 
Explanation:
The data given are
Height,h=550ft,
length of incline plane, L=1.50 miles
first we convert all parameters to meters
since 1ft=0.3048m then 550ft will be 167.76m
also 1mile=1609.34m, hence 1.5mile will be 2414m
From the diagram attached, the length and height formed a simple triangle with the length being the hypotenuse and the height being the opposite.
Hence using SOHCAHTOA, we can conclude that the angle will be

b. the new height becomes

going by the same formula, we solve the new length s

Answer:
Your answer would be A.
Explanation:
A. the rope will not move
Light travels at a speed of:

The distance between Mercury and Sun is

, so the time it takes is

if we want to convert this into minutes, keeping in mind that 1 min = 60 seconds, we should divide this value by 60:
Acceleration of gravity is proportional to 1/D² .
('D' is the distance from the Earth's center.)
We need (D / R)² = 9.8
('R' is the Earth's radius.)
D/R = √9.8 = 3.13
Distance from Earth's <u>center</u> = 3.13 R
Distance above Earth's <u>surface</u> = 2.13 R = about 13,570 km =====================================================
<span>Accelerarea de gravitate este proporțională cu 1 / D².
('D este distanța de centrul Pământului.)
Avem nevoie de (D / R) ² = 9,8
('R' este raza Pământului.)</span><span>
D / R = √9.8 = 3,13
Distanța de la <u>centrul</u> Pamantului = 3,13 R
Distanța de deasupra <u>suprafetei</u> Pamantului = 2.13 R = aproximativ <span><em>13,570 km</em></span></span>