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3 years ago

Difference between weightlessness in space and weightlessness in earth

1 answer:

8 0

In space we feel weightlessness because the earths gravity has less effect on us.The Earths gravitational attraction at those altitudes is only about 11% less than it is at the Earths surface. If you had a ladder that could reach as high as the the shuttles orbit, your weight would be 11% less at the top.

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Describe in brief<br> brief the scope and excitement<br> in Physics

andriy [413]

Answer:

The scope of physics is quite vast and covers an enormous range of magnitude of physical quantities like mass, length, time, energy etc.

The scope is divided into two sections, where on one side it studies about phenomena at a very small microscopic level involving and analyzing electrons, protons, and neutrons.

8 0

3 years ago

A "seconds pendulum" is one that moves through its equilibrium position once each second. (The period of the pendulum is precise

Alex73 [517]

<h2>Ratio of free fall acceleration of Tokyo to Cambridge = 0.998</h2>

Explanation:

We know the equation

$T=2\pi \sqrt{\frac{l}{g}}$

where l is length of pendulum, g is acceleration due to gravity and T is period.

Rearranging

$g= \frac{4\pi^2l}{T^2}$

Length of pendulum in Tokyo = 0.9923 m

Length of pendulum in Cambridge = 0.9941 m

Period of pendulum in Tokyo = Period of pendulum in Cambridge = 2s

We have

$\frac{ g_{\texttt{Tokyo}}}{ g_{\texttt{Cambridge}}}= \frac{\frac{4\pi^2 l_{\texttt{Tokyo}}}{ T_{\texttt{Tokyo}}^2}}{\frac{4\pi^2 l_{\texttt{Cambridge}}}{ T_{\texttt{Cambridge}}^2}}\\\\\frac{ g_{\texttt{Tokyo}}}{ g_{\texttt{Cambridge}}}=\frac{\frac{0.9923}{2^2}}{\frac{0.9941}{2^2}}=0.998$

Ratio of free fall acceleration of Tokyo to Cambridge = 0.998

6 0

3 years ago

Solve the following problem showing all work, the formula, and correct units.

Temka [501]

5g/cm³

it is not iron.

Explanation:

Given parameters:

Density of iron = 7.874g/cm³

Mass of metal = 2000g

Volume of metal = 400cm³

Unknown:

Density of bar = ?

Is it iron = ?

Solution:

The density of a substance is its mass per unit area. Every substance have an intensive density value that typifies them all.

The density of water and other substances are the same if they maintain their level of pureness.

Density = $\frac{mass }{volume}$

Density of metal bar = $\frac{2000}{400}$ = 5g/cm³

Since this value is not the same as the given density of iron, it is not iron.

learn more:

Density brainly.com/question/5055270

learnwithBrainly

8 0

3 years ago

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morpeh [17]

Jackson sells lemonade for $2 per cup. he paid $20 for supplies to sell 5 cups. What is the domain for this scenario

5 0

3 years ago

A mountain climber of mass 60.0 kg slips and falls a distance of 4.00 m, at which time he reaches the end of his elastic safety

Sever21 [200]

The energy that the rope absorbs from the climber is Ep=m*g*h where m is mass of the climber, g=9.81m/s² and h is the height the climber fell. h=4 m+2 m because he was falling for 4 meters and the rope stretched for 2 aditional meters. The potential energy stored in the rope is Er=(1/2)*k*x², where k is the spring constant of the rope and x is the distance the rope stretched and it is
x=2 m. So the equation from the law of conservation of energy is:

Ep=Er

m*g*h=(1/2)*k*x²

k=(2*m*g*h)/x² = (2*60*9.81*6)/2² = 7063.2/4 =1765.8 N/m

So the spring constant of the rope is k=1765.8 N/m.

7 0

3 years ago

Difference between weightlessness in space and weightlessness in earth​

Difference between weightlessness in space and weightlessness in earth