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Marianna [84]
3 years ago
7

What burns quicker, white or colored candles?

Physics
1 answer:
VashaNatasha [74]3 years ago
3 0
White is a hotter color so it burns faster. :)
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PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
Basile [38]
<h3><u>Answer;</u></h3>

Electromagnetic and transverse

<h3><u>Explanation</u>;</h3>
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3 years ago
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Explanation:

3 0
3 years ago
Read 2 more answers
How does speed effect momentum?
drek231 [11]
Momentum = mass * speed
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7 0
3 years ago
When you jump upward, your hang time is the time your feet are off the ground. Does hang time depend on the vertical component o
hjlf

Answer:

It only depends on the vertical component

Explanation:

Hello!

The horizontal component will tell you how much you travel in that direction.

You could have a large horizontal velocity, but if the vertical velocity is zero, you will never be out of the ground. Similarly, you could have a zero horizontal velocity, but if you have a non-zero vertical velocity you will be some time off the ground. This time can be calculated by two means, one is using the equation of motion (position as a function of time) and the other using the velocity as a fucntion of time.

For the former you must find the time when the position is zero.

Lets consider the origin of teh coordinate system at your feet

y(t) = vt - (1/2)gt^2

We are looking for a time t' for which y(t')=0

0 = vt' - (1/2)gt'^2

vt' = (1/2)gt'^2

The trivial solution is when t'=0 which is the initial position, however we are looking for t'≠0, therefore we can divide teh last equation by t'

v = (1/2)gt'

Solving for t'

t' = (2v/g)

7 0
3 years ago
I need help on (a)<br> I don't know what equation to use?
Alchen [17]

Impulse = (force) x (length of time the force lasts)

I see where you doodled  (60)(40)  over on the side, and you'll be delighted
to know that you're on the right track !

Here's the mind-blower, which I'll bet you never thought of:
On a force-time graph, impulse (also change in momentum)
is just  the <em>area that's added under the graph during some time</em> !

From zero to 60, the impulse is just the area of that right triangle
under the graph.  The base of the triangle is  60 seconds.  The
height of the triangle is  40N .  The area of the triangle is not
the whole (base x height), but only <em><u>1/2 </u></em>(base x height).

  1/2 (base x height) = 1/2 (60s x 40N) = <u>1,200 newton-seconds</u>

<u>That's</u> the impulse during the first 60 seconds.  It's also the change in
the car's momentum during the first 60 seconds. 

Momentum = (mass) x (speed)

If the car wasn't moving at all when the graph began, then its momentum is  1,200 newton-sec after 60 seconds.  Through the convenience of the SI system of units, 1,200 newton-sec is exactly the same thing as 1,200 kg-m/s .  The car's mass is 3 kg, so after 60 sec, you can write

    Momentum = M x V = (3 kg) x (speed) = 1,200 kg-m/s

and the car's speed falls right out of that. 

From 60to 120 sec, the change in momentum is the added area of that
extra right triangle on top ... it's 60sec wide and only 20N high.  Calculate
its area, that's the additional impulse in the 2nd minute,  which is also the
increase in momentum, and that'll give you the change in speed.


8 0
3 years ago
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