4 years ago

Please help on this one ?

Physics

1 answer:

Marianna [84]4 years ago

3 0

D has the largest range

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What is the mass, in kilograms, of an avogadro's number of people, if the average mass of a person is 170 lb ?

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About 4.7e25 kilograms

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Which model below shows the positions of the Sun, Moon, and Earth that have the greatest effect on ocean tides?

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<u>Answer:</u>

Below!

<u>Explanation:</u>

Referring to the picture, we can conclude that the picture J will have the most effect on ocean tides.

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2 years ago

an ocean wave has a wavelength of 16 meters and a frequency of 0.31 waves per second. what is the spend of the wave

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3 years ago

The answer using the graphical method and analytical method of vector addition will always be.

Alex17521 [72]

The answer using the graphical method and analytical method of vector addition will always be

C. Same

Analytic method means adding vectors (x₁,y₁) and (x₂,y₂) give (x₁+x₂,y₁+y₂)

Example: Addition of (2,3) and (1,1) gives (3,4)

Solving it graphically will also give (3,4)

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4 years ago

In a shipping company distribution center, an open cart of mass 50.0 kg is rolling to the left at a speed of 5.00 m/s. Ignore fr

spin [16.1K]

Answer:

a) $v_p=9.35m/s$

Explanation:

From the question we are told that:

Open cart of mass $M_o=50.0 kg$

Speed of cart $V=5.00m/s$

Mass of package $M_p=15.0kg$

Speed of package at end of chute $V_c=3.00m/s$

Angle of inclination $\angle =37$

Distance of chute from bottom of cart $d_x=4.00m$

Generally the equation for work energy theory is mathematically given by

$\frac{1}{2}mu^2+mgh=\frac{1}{2}mv_p^2$

Therefore

$\frac{1}{2}u^2+gh=\frac{1}{2}v_p^2$

$v_p=\sqrt{2(\frac{1}{2}u^2+gh)}$

$v_p=\sqrt{2(\frac{1}{2}v_c^2+gd_x)}$

$v_p=\sqrt{2(\frac{1}{2}(3)^2+(9.8)(4))}$

$v_p=9.35m/s$

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3 years ago