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Katarina [22]
2 years ago
14

Speed is always measured in terms of a unit of distance divided by a unit of time, is this correct?​

Physics
1 answer:
maw [93]2 years ago
5 0

Answer: speed is not measured in time but in distance like 100 feet per second that is how speed is measured.

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A rocket has landed on Planet X, which has half the radius of Earth. An astronaut onboard the rocket weighs twice as much on Pla
Burka [1]

Explanation:

Let acceleration due to Gravity for a planet is given by:

g_X=GM/R^2

Here,g_X = 2g

Escape velocity is given by:

v =\sqrt{ \frac{2GM} {R}} = \sqrt{2aR}

Here, R=R_earth/2

and g_X = 2g

Therefore,v=\sqrt(2(2g)(R/2))=v_0

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Korvikt [17]

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Explanation:

8 0
4 years ago
There was frost on the ground overnight because the temperature dropped. In addition, there was cold, damp moisture in the air.
maksim [4K]
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3 years ago
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A MEMS-based accelerometer has a mass of m = 2 grams, an equivalent spring constant of k = 5 N/m, and an equivalent damping coef
pychu [463]

Answer:

The natural frequency = 50 rad/s = 7.96 Hz

Damping ratio = 0.5

Explanation:

The natural frequency is calculated in this manner

w = √(k/m)

k = spring constant = 5 N/m

m = mass = 2 g = 0.002 kg

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w = 2πf

50 = 2πf

f = 50/(2π) = 7.96 Hz

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5 0
3 years ago
The graph below represents the relationship between the force exerted on an elevator and the distance the elevator is lifted.
Stella [2.4K]

I have three problems with this question.

#1). If you copied the question exactly the way it's written,
then the question is written very badly.  The wording is
misleading, and the more you try to think about it and
puzzle it out, the more it'll damage your understanding
of Physics.

There is no relationship between the force exerted on an
elevator and the distance the elevator is lifted.

-- If the force is anything more than the weight of the elevator ...
even one ounce more ... then it'll lift the elevator as high as
you want. 

-- If the force is anything less than the weight of the elevator ...
even one ounce less, then that elevator is headed for the bottom.

#2).  You didn't post any graph below, so if we need the graph
to answer the question, then we can't answer the question.

#3).  I guess that's OK, because you didn't ask any question.  
8 0
3 years ago
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