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VladimirAG [237]

3 years ago

5

In a motion diagram, the size of the object must be less than the distance moved.

1 answer:

insens350 [35]3 years ago

4 0

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A constant 20 N force is applied to a 7 kg box to push it along the ground. How

Elis [28]

Answer:

40 joules

Explanation:

Work Done=Force*Distance

6 0

3 years ago

An object of mass, m1 with a velocity, v1 collides with another object at rest (v2 = 0) with a mass, m2. After the collision, m1

goblinko [34]

Answer:

$v"_{1} = v_{1} tan$ Θ

$v^{"} _{2} = \frac{m_{1}v_{1}}{m_{2}cos}$ Θ

Θ = $tan^{-1}(\frac{v^{"} _{1} }{v_{1} } )$

Explanation:

Applying the law of conservation of momentum, we have:

Δ $p_{x = 0}$

$p_{x} = p"_{x}$

$m_{1}v_{1} = m_{2}v"_{2} cos$ Θ (Equation 1)

Δ $p_{y} = 0$

$p_{y} = p"_{y}$

$0 = m_{1} v"_{1} - m_{2} v"_{2} sin$ Θ (Equation 2)

From Equation 1:

$v"_{2} = \frac{m_{1}v_{1}}{m_{2}cos}$ Θ

From Equation 2:

$m_{2} v"_{2}$ sinΘ = $m_{1} v_{1}$

$v"_{1} = \frac{m_{2} v"_{2}sinΘ}{m_{1} }$

Replacing Equation 3 in Equation 4:

$v"_{1}=\frac{m_{2}\frac{m_{1}v_{1}}{m_{2}cosΘ}sinΘ}{m_{1}}$

$v"_{1}=v_{1}\frac{sinΘ}{cosΘ}$

$v"_{1}=v_{1}tan$ Θ (Equation 5)

And we found Θ from the Equation 5:

tanΘ= $\frac{v"_{1}}{v_{1}}$

Θ= $tan^{-1}(\frac{v"_{1}}{v_{1}})$

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3 years ago

What is a science book

AnnyKZ [126]

Answer:

A book containing information on various types of science related topics.

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2 years ago

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Scientists expected venus to have a large amount of water. however, little detectable water has been found anywhere on venus, ei

Citrus2011 [14]

The reason that says that Venus should have had water from the sources the same as the Earth, but all of those are gone is not a correct reason why Venus is dry. Venus is the hottest planet in the solar system because of the atmosphere it has. The atmosphere of Venus contains 95% of CO2 causing it be hot and dry.

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3 years ago

How are elements arranged in the modern periodic table?

photoshop1234 [79]

It is currently organised by the increasing atomic # based on the actual nuclear charge of the elements

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3 years ago

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