Please help! I dont get it!

1 answer:

5 0

I know its late but its <span>B.Temperature plays a greater role in thermohaline circulation than salinity does, since it is the temperature of the ocean interacting with the atmosphere that causes deep sea currents.
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A jetliner is moving at a speed of 245m/s. The vertical component of the plane's velocity is 40.6 m/s. Determine the magnitude o

Harman [31]

Answer:

Horizontal component of velocity = 241.61 m/s

Explanation:

Given that,

Velocity of a jetliner is 245 m/s

The vertical component of the plane's velocity is 40.6 m/s, $v_y=40.6\ m/s$

We need to find the magnitude of the horizontal component of the plane velocity.

The resultant velocity is given by :

$v=\sqrt{v_x^2+v_y^2}$

Where, $v_x$ is the horizontal component of the plane velocity

$v^2=v_x^2+v_y^2\\\\v_x^2=v^2-v_y^2\\\\v_x^2=(245)^2-(40.6)^2\\\\v_x=\sqrt{58376.64}\\\\v_x=241.61\ m/s$

So, the magnitude of the horizontal component of the plane velocity is 241.61 m/s.

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3 years ago

A ball is thrown horizontally from a 20-m-high building with a speed of 5.0m/s

KATRIN_1 [288]

1) Horizontal velocity, Vx

Vx is constant and equal to 5.0 m/s

The graph Vx(t) = 5.0 m/s is a horizontal line (parallel to the horizontal t-axis). that intercepts the vertical-axis at 5.0 and runs from t = 0 to t = 2.

2) Vertical velocity, Vy

Vy = gt = 10t

d = at^2 / 2 => tmax = √(2d / a) = √(2*20m/10m/s^2) = 2 s

Graph Vy is an inclined line with slope 10 m/s^2, that runs from t =0 to t = 2 s, and passes through the points (0,0), (1,10), and (2,20).

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3 years ago

At a country music festival, a band is playing at the end of a crowded

Anna11 [10]

Answer:

t=4.86s

Explanation:

To find the wavelength you use the following formula:

$v=\lambda f$