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3 years ago

13

What makes a source credible? O It relies on a single original source for facts. OIt is shared by family or a trusted friend. O

It uses personal opinion to support claims. 0 It gives reasons to be believed and trusted

1 answer:

const2013 [10]3 years ago

3 0

Im not sure but it might be the last option: it gives reasons to be believed and trusted

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The luxury liner Queen Elizabeth 2 has a diesel-electric powerplant with a maximum power of 84 MW at a cruising speed of 35.0 kn

frosja888 [35]

Answer:

$F = 4669.201\,kN$

Explanation:

Maximum speed is get at maximum power. Let assume that ship travels at constant speed, the expression for power is equal to:

$\dot W = F\cdot v$

Where $F$ and $v$ are the forward force and speed of ship measured in newtons and meters per second, respectively.

The forward force can be determined by clearing it in the expression described above:

$F = \frac{\dot W}{v}$

$F = \frac{84\times 10^{3}\,kW}{(35\,knots)\cdot \left(\frac{0.514\,\frac{m}{s} }{1\,knot} \right)}$

$F = 4669.201\,kN$

4 0

3 years ago

Read 2 more answers

53. A recently discovered planet has a mass four times as great as Earth's and a radius twice as large as Earth's. What will be

marusya05 [52]

Answer:

$g' = g = 9.81 m/s^2$

so gravity will be same as that of surface of earth

Explanation:

As we know that the acceleration due to gravity is given as

$g = \frac{GM}{R^2}$

here we have

$M = 4M_e$

$R = 2R_e$

we know that for earth we have

$g = 9.81 = \frac{GM_e}{R_e^2}$

now if the radius and mass is given as above

$g' = \frac{G(4M_e)}{(2R_e)^2}$

$g' = \frac{GM_e}{R_e^2}$

$g' = g = 9.81 m/s^2$

so gravity will be same as that of surface of earth

6 0

3 years ago

What type of volcano froms when mounds are formed by slow oozing lava

AleksAgata [21]

It's a shield volcano, which is a broad, domed volcano with gently sloping sides, characteristic of the eruption of fluid, basaltic lava. Hope this helps! :)

7 0

4 years ago

In a lab, the mass of object A is 2.5 kg. Object A weighs:

dangina [55]

Answer:

25N

Explanation:

Assuming the lab is on earth:

w = mg = 2.5 (9.81) = 25N

8 0

3 years ago

A 0.144 kg baseball approaches a batter with a speed of . The batter lines the ball directly back to the pitcher with a speed of

lyudmila [28]

Answer:

What you say ¡

no pagal

Mayur is very very shame

<h2><em><u>Sorry</u></em></h2>

8 0

3 years ago