All categories

2 years ago

How do latitude and longitude help identify your exact location?

SAT

1 answer:

gladu [14]2 years ago

3 0

Answer:

The lines of longitude and latitude help us in measuring the distance from the Earth's Equator.

You might be interested in

Which addition expression has the sum 8 – 3i ? (9 2i) (1 – i) (9 4i) (–1 – 7i) (7 2i) (1 – i) (7 4i) (–1 – 7i)

charle [14.2K]

Answer:

B- (9 + 4i) + (–1 – 7i)

Explanation:

5 0

3 years ago

Read 2 more answers

Friction: a 50-kg box is resting on a horizontal floor. A force of 250 n directed at an angle of 30. 0° below the horizontal is

sergejj [24]

The net forces on the box parallel and perpendicular to the surface, respectively, are

∑ F[para] = (250 N) cos(-30.0°) - F[friction] = (50 kg) a

and

∑ F[perp] = F[normal] + (250 N) sin(-30.0°) - F[weight] = 0

where a is the acceleration of the box. (We ultimately don't care what this acceleration is, though.)

To decide whether the friction here is static or kinetic, consider that when the box is at rest, the net force perpendicular to the floor is

∑ F[perp] = F[normal] - F[weight] = 0

so that, while at rest,

F[normal] = (50 kg) g = 490 N

Then with µ[s] = 0.40, the maximum magnitude of static friction would be

F[s. friction] = 0.40 (490 N) = 196 N

so that the box will begin to slide if it's pushed by a force larger than this.

The horizontal component of our pushing force is

(250 N) cos(-30.0°) ≈ 217 N

so the box will move in our case, and we will have kinetic friction with µ[k] = 0.30.

Solve the ∑ F[perp] = 0 equation for F[normal] :

F[normal] + (250 N) sin(-30.0°) - F[weight] = 0

F[normal] - 125 N - 490 N = 0

F[normal] = 615 N

Then the kinetic friction felt by the box has magnitude

F[k. friction] = 0.30 (615 N) = 184.5 N ≈ 185 N

8 0

2 years ago

A doctor sees 24 patients in 8 hours. At this rate, approximately how many patients will the doctor be able to see in a 20-hour

ipn [44]

Answer:

about 60 patients

Explanation:

he sees 3 patients every hour

7 0

3 years ago

The state of Connecticut has an opening on a three-member board that settles labor disputes between unions and employers. Which

kolezko [41]

Answer:

Explanation:

4 0

3 years ago

Read 2 more answers

Evaluate the piecewise defined function at the indicated values.

Anit [1.1K]

9514 1404 393

Answer:

-45, 1, 4, 5, 9

Explanation:

The first argument value, -5, is less than -1, so the first section of the function definition is used. f(-5) = 9(-5) = -45.

The 2nd to 5th argument values are in the interval [-1, 3], so the second section of the function definition is used.

The last argument value, 6, is greater than 3, so the last section of the function definition is used. f(6) = (6 -3)^2 = 9.

Function values are shown in the table attached.

5 0

3 years ago