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2 years ago

13

Please Help Me!!!

2 answers:

Roman55 [17]2 years ago

4 0

Answer:Its D

Explanation:

Because im not an idiot, i think.

OLEGan [10]2 years ago

3 0

Answer: C

Explanation: Polar molecules differ from nonpolar molecules by having positive and negative ends and stronger intermolecular forces of attraction Nonpolar molecules have only weak attractive forces for each other, so nonpolar substances tend to have low melting points and boiling points

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Why are latitude and longitude included on maps

Veseljchak [2.6K]

Answer:

to locate places on earth

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2 years ago

A 97 kg man lying on a surface of negligible friction shoves a 62 g stone away from himself, giving it a speed of 2.6 m/s. What

tangare [24]

Answer:

man will move in opposite direction with speed

$v_1 = 1.66 \times 10^{-3} m/s$

Explanation:

As we know that man is lying on the friction-less surface

so here net force along the surface is zero

so if we take man + stone as a system then net change in momentum of this system will become zero

so here we have

$P_i = P_f$

$0 = m_1v_1 + m_2v_2$

here we have

$0 = (97)v_1 + 0.062(2.6)$

$v_1 = -\frac{0.1612}{97}$

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2 years ago

Explain why is it easy to slip on a floor that is wet

zmey [24]

The water creates less friction between your foot and the ground

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2 years ago

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Verify that the SI unit of impulse is the same as the SI unit of momentum.

lys-0071 [83]

Maybe this will help you out:

Momentum is calculate by the formula:

$P = mv$

Where:

P = momentum

m = mass

v = velocity

The SI unit:

$mass = kg\\ velocity = \dfrac{m}{s}$

So the unit of momentum would be:

$kg.\dfrac{m}{s}$

Impulse is defined as the change in momentum or how much force changes momentum. It can be calculate with the formula:

I = FΔt

where:

I = impulse

F = Force

Δt = change in time

The SI unit:

F = Newtons (N) or $kg.\dfrac{m}{s^{2} }$

t = Seconds (s)

So the unit of impulse would be derived this way:

I = FΔt

I = $kg.\dfrac{m}{s^{2} }$ x $s$

or

$\dfrac{kg.m.s}{s^{2}} = \dfrac{kg.m.s}{s.s}$

You can then cancel out one s each from the numerator and denominator and you'll be left with:

$kg.\dfrac{m}{s}$

So then:

Momentum: Impulse

$kg.\dfrac{m}{s}$ $kg.\dfrac{m}{s}$

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3 years ago

Walk in a straight line. Now stop. Did you accelerate? Explain

Brums [2.3K]

Answer;

It's about acceleration, right?

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2 years ago

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