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Len [333]
3 years ago
11

What forms do the equations of motion for an idealized string take if either (a) the linear density varies with position, or (b)

the string hangs vertically supported only at the upper end?

Mathematics
1 answer:
stepan [7]3 years ago
7 0

Answer:

a) the varying densities are to be considered with respect to position

Step-by-step explanation:

the complete answer is found in the attachment

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Very confused with this
OlgaM077 [116]

Answer:

∠ D = 28°

Step-by-step explanation:

The external angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ EBC is an exterior angle of Δ ABE, thus

∠ EBC = 90° + 34° = 124°

BD bisects ∠ EBC, so

∠ EBD = 124° ÷ 2 = 62° , then

∠ D = 180° - (90 + 62)° = 180° - 152° = 28° ( angle sum of triangle )

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3 years ago
What is the percent error
RideAnS [48]
When you don't use or write the percent right.<span />
8 0
3 years ago
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When an equation in one variable is solved using a system of equations, the solution is always the blank of each intersection.
Vera_Pavlovna [14]

Answer:

x-coordinate.

Step-by-step explanation:

its the answer for edge.

8 0
3 years ago
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Mr. Smith is flying his single-engine plane at an altitude of 2400 feet. He sees a cornfield at an angle of depression of 30º. W
Svet_ta [14]

Answer:

Height of the fighter plane =1.5km=1500 m

Speed of the fighter plane, v=720km/h=200 m/s

Let be the angle with the vertical so that the shell hits the plane. The situation is shown in the given figure.

Muzzle velocity of the gun, u=600 m/s

Time taken by the shell to hit the plane =t

Horizontal distance travelled by the shell =u

x

t

Distance travelled by the plane =vt

The shell hits the plane. Hence, these two distances must be equal.

u

x

t=vt

u Sin θ=v

Sin θ=v/u

=200/600=1/3=0.33

θ=Sin

−1

(0.33)=19.50

In order to avoid being hit by the shell, the pilot must fly the plane at an altitude (H) higher than the maximum height achieved by the shell for any angle of launch.

H

max

=u

2

sin

2

(90−θ)/2g=600

2

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4 0
3 years ago
What number u satisfies the equation sqrt{100u-100}=100?
kifflom [539]
The answer is 101
100 squared is 10,000
Then form an equation
100u-100=10,000
        +100    +100
100u=10,100
divide by 100 on both sides
and you get 101 as the answer
6 0
3 years ago
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