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3 years ago

Identify the velocity-versus-time plot(s) that correspond to motion under a constant, non-zero acceleration.

Physics

1 answer:

ICE Princess25 [194]3 years ago

5 0

Answer:

See explanation

Explanation:

The question is incomplete because the images were not attached but I will try to help you as much as possible.

Constant acceleration implies that the velocity increases uniformly with time.

The graph of constant acceleration is a straight line graph having a slope. The slope of the graph is constant at any point along the straight line.

The image attached shows a velocity-time graph depicting constant acceleration.

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What is common between the quantities of area, density and speed?

Rainbow [258]

Answer:

They are all s

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3 years ago

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To keep the calculations fairly simple, but still reasonable, we shall model a human leg that is 92.0 cm long (measured from the

lorasvet [3.4K]

Answer:

Xc = 64.27 cm, Yc = 0 cm, Xc = 27.73 cm, Yc = 18.27 cm

Explanation:

A human leg is 92 cm long equally divided into two parts (upper leg and lower leg) that is both are 46 cm long

M1 = 8.35 kg

M2 = 5.50 kg

A. Starting from hip joint, when the leg is placed horizontally, the X coordinate of centre of mass will be

Xc = (m1x1 + m2x2) / m1 + m2

Xc = (8.35x46 + 5.50 x 92) / 8.35 + 5.50

( here we took x2 = 92 cm because we are measuring length from the hip joint, that means length at hip joint is 0 and at the foot 92 cm)

Xc = 890.1 / 13.85

Xc = 64.27 cm

B. Yc = (y1m1 + y2m2) / m1 + m2

Yc = (0x8.35 + 0x5.50) / 8.35 + 5.50

( here y1 and y2 are 0 because the leg is placed horizontally that means in X direction so none of the leg component is in Y direction)

Yc = 0 cm

C. Xc = (m1x1 + m2x2) / m1 + m2

Xc = (8.35x46 + 5.50x0) / 8.35 + 5.50

(here x2 is taken 0 because the other half leg is bent vertically that means it is in Y direction so its X component is 0)

Xc = 384.1 / 13.85

Xc = 27.73 cm

D. Yc = (m1y1 + m2y2) / m1 + m2

Yc = (8.35x0 + 5.50x46) / 8.35 + 5.50

(here y1 is zero because the upper leg is in X direction and y2 is taken 46 cm because starting measuring from hip joint 46 cm of length of lower leg is in Y direction)

Yc = 253/13.85

Yc = 18.27 cm

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3 years ago

UPVOTES FOR EVERY ANSWER!!!!!!!!

mario62 [17]

<span>C. Field lines begin near the magnet’s north pole and extend toward its south pole.

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4 years ago

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What happens when you spray your mouth with spray paint?

Mamont248 [21]

You realized that you are stupid....

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3 years ago

A film of oil that has an index of refraction of 1.45 rests on an optically flat piece of glass of index of refraction n = 1.60.

blagie [28]

Answer:

442.75862 nm

Explanation:

m = Order

n = Refractive index

$\lambda$ = Wavelength

We have the relation of thickness and wavelength given by

$2nt=m\lambda$

The consecutive spectral line is given by

$2nt=(m+1)\lambda$

So,

$\lambda=\dfrac{2nt}{m}\\\Rightarrow 642=\dfrac{2nt}{m}$

and

$428=\dfrac{2nt}{m+1}$

Dividing the wavelengths we get

$\dfrac{642}{428}=\dfrac{m+1}{m}\\\Rightarrow 1.5 m=m+1\\\Rightarrow m=\frac{1}{0.5}\\\Rightarrow m=2$

$t=\dfrac{m\lambda}{2n}\\\Rightarrow t=\dfrac{2\lambda}{2n}\\\Rightarrow t=\dfrac{642}{1.45}\\\Rightarrow t=442.75862\ nm$

The film thickness of oil is 442.75862 nm

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3 years ago