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3 years ago

How streamlining can reduce the affext of the forces

Physics

1 answer:

LekaFEV [45]3 years ago

4 0

Streamlining helps to cut through and reduces the force acting on any object. It helps the object to move swiftly.

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The two hot-air balloons in the drawing are 48.2 and 61.0 m above the ground. A person in the left balloon observes that the rig

Lynna [10]

Answer:

x = 54.15 meters between the balloons horizontally.

Explanation:

Hence, vertical distance between balloons is 12.8 meters.

y= 61-48.2 = 12.2 m

A right-angle triangle is formed with,

angle θ = 13.3 degrees

opposite (y) = 12.8

adjacent (x) = ?

$tan\theta = \dfrac{y}{x}$

Now by putting the values in the above equation.

$tan13^{\circ}=\dfrac{12.8}{x}$

$x=\dfrac{12.8}{tan13^{\circ}}$

x = 54.15 meters between the balloons horizontally.

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3 years ago

Energy of motion is known as what energy

GaryK [48]

Kinetic Energy = Energy of Motion

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3 years ago

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In this dark-colored forest, you started with 50% light moths and 50% dark moths. At the end of your simulation, was there a hig

krek1111 [17]

Dark moths because they use their color to blend in with the trees to hide from birds

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3 years ago

What is power? Question options: Power is the ability to do work. Power is the rate at which work is done. Power is the amount o

nika2105 [10]

Power in physics is work done over time. So the answer is Power is the rate at which work is done.

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4 years ago

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A coil spring stretches by 2.50 cm when a mass of 750 g is suspended from it. (a) Find the force constant of the spring. (b) How

weqwewe [10]

Answer:

(a) 294 N/m

(b) 0.027 m or 2.7 cm

Explanation:

(a) From Hook's law,

F = ke......................... Equation 1.

make k the subject of the equation

k = F/e..................... Equation 2

Where F = force applied on the spring, k = spring constant, e = extension.

From the question, the force applied to the spring is the weight of the mass.

F = mg = 0.75(9.8) = 7.35 N

Also, e = 2.5 cm = 0.025 m

Substitute these values into equation 2

k = 7.35/0.025

k = 294 N/m.

(b) If a mass of 800 g is suspended,

F = ke

e = F/k................... Equation 3

F = mg = 0.8(9.8) = 7.84 N,

k = 294 N/m.

Substitute these values into equation 3

e = 7.84/294

e = 0.027 m

e = 2.7 cm

7 0

3 years ago