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3 years ago

a 2 kilogram wooden block raised on an inclined plane making angle 30 degree frictional force will be equal to

Physics

1 answer:

nata0808 [166]3 years ago

8 0

Answer:

fvSvfbikufdclknfmfl us

Explanation:

cuz

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What instrument will be used to measure the volume of a box

Anettt [7]

Answer:

A ruler.

Explanation:

Just measure height, length and width and multiply each.

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3 years ago

Is an electron cloud bigger than an atom?

Rashid [163]

Answer:

Explanation:

An electron is one of the components of an atom, so it cannot be larger than that.

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2 years ago

An object moving due to gravity can be described by the motion equation y=y0+v0t−12gt2, where t is time, y is the height at tha

LenaWriter [7]

Answer:

$t=6.4534 s$

Explanation:

This is an exercise where you need to use the concepts of free fall objects

Our knowable variables are initial high, initial velocity and the acceleration due to gravity:

$y_{0}=75m$

$v_{oy} =20m/s$

$g=9.8 m/s^{2}$

At the end of the motion, the rock hits the ground making the final high y=0m

$y=y_{o}+v_{oy}*t-\frac{1}{2}gt^{2}$

If we evaluate the equation:

$0=75m+(20m/s)t-\frac{1}{2}(9.8m/s^{2})t^{2}$

This is a classic form of Quadratic Formula, we can solve it using:

$t=\frac{-b ± \sqrt{b^{2}-4ac } }{2a}$

$a=-4.9\\b=20\\c=75$

$t=\frac{-(20) + \sqrt{(20)^{2}-4(-4.9)(75) } }{2(-4.9)}=-2.37s$

$t=\frac{-(20) - \sqrt{(20)^{2}-4(-4.9)(75) } }{2(-4.9)}=6.4534s$

Since the time can not be negative, the reasonable answer is

$t=6.4534s$

8 0

3 years ago

A 68 kg deer has a momentum of 952 kg∙m/s. What is its velocity?

Gwar [14]

All we need to do is divide the momentum and weight to find the velocity:

v = m / w

Solve using the values we are given.

v = 952/68 = 14 m/s

Best of Luck!

5 0

3 years ago

What is stomato and write its functions

Nataly_w [17]

Answer:

Stomata- In botany, a stoma (also stomate; plural stomata) is a tiny opening or pore that is used for gas exchange. They are mostly found on the under-surface of plant leaves. Its functions are- The gas exchange that occurs when stomata are open facilitates photosynthesis. Mark Brainliest Pls

Explanation:

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4 years ago

a 2 kilogram wooden block raised on an inclined plane making angle 30 degree frictional force will be equal to​

a 2 kilogram wooden block raised on an inclined plane making angle 30 degree frictional force will be equal to