Answer:
The magnitude of the necessary lifting force is 7.95N
Step-by-step explanation:
Force = mv^2/r
mass (m) = 2.00105kg, velocity (v) = 123m/s, radius (r) = 3810m
Force = 2.00105×123^2/3810 = 30273.89/3810 = 7.95N
Answer:
0.84 m
The side of the cube with the surface area of 240 square meters is <u>0.84 meters</u> longer than the cube with the surface area of 180 square meters.
Step-by-step explanation:
The correct question must be:
The formula gives the length of the side, s, of a cube with the surface area, SA. How much longer is the side of the cube with a surface area of 240 square meters than a cube with the surface area of 180 square meters ?
Given formula to calculate side of a cube:
where is the side of the cube and is the surface area of the cube.
For a cube with surface area of 240 square meters, the side can be calculated as:
For a cube with surface area of 180 square meters, the side can be calculated as:
<em>The difference in the sides of the cubes is</em> =
Thus, the side of the cube with the surface area of 240 square meters is 0.84 meters longer than the cube with the surface area of 180 square meters.
Answer:
15 10+5=15 have a nice day
Step-by-step explanation:
The side measuring 6.2 is adjacent to the reference angle x. 9 is the measure of the hypotenuse. The trig ratio that relates the side adjacent to the hypotenuse is cosine. We will actually use inverse cosine because what we are looking for is an angle measure. Setting up properly, we have
. When we do the division we get cos(x) = .68888888 In order to find the angle that has a cosine ratio of .6888888, we will hit the 2nd button on our calculator and then the cos button and we will see this on our display:
and a parenthesis that is open. Enter that .688888 in and hit enter and you'll get an angle measure of 46.45 or 46.5 rounded. First choice from above.