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3 years ago

You are given two same party balloons (one filled with helium and the

Physics

1 answer:

alexgriva [62]3 years ago

6 0

Answer:

you have to substitute the volume of the ballonn with no ruler

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What provided the force that made the cart speed up

fgiga [73]

Answer:

Potential energy turn to kinetic energy

Explanation:

5 0

4 years ago

Read 2 more answers

Lottery balls are thrown into a hopper and are set into motion by air forced through the container. each ball has a mass of 0.00

Marina CMI [18]

In this three body system total kinetic energy remains constant:
$E_{k} = constant =0.0268 J$

$E_{k} = E_{k1}+ E_{k2}+ E_{k3}$
If we assume that upwards movement is positive and downwards movement is negative the formula is:
$E_{k} = E_{k1}- E_{k2}+ E_{k3}$

Formula for kinetic energy is:
$E_{k} = \frac{m v^{2} }{2}$

Now we have:
$E_{k} = \frac{m v_{1} ^{2} }{2} -\frac{m v_{2} ^{2} }{2} +\frac{m v_{3} ^{2} }{2} \\ E_{k} = \frac{m}{2} (v_{1} ^{2}-v_{2} ^{2}+v_{3} ^{2}) \\ \\ 0.0268= \frac{0.0044}{2} (1.3 ^{2}-1.66^{2}+v_{3} ^{2}) \\ \\ 0.0536=0.0022(1.69-2.7556+v_{3} ^{2}) \\ \\ v_{3} ^{2}=25.43 \\ \\ v_{3} =+-5.04$

We got two solutions: positive and negative. The speed is 5.04 m/s and direction can be upwards and downwards.

3 0

3 years ago

Beginning<br> lonic compounds are made up of a__<br> and a__

Romashka-Z-Leto [24]

Answer:

metal and non-metal

Explanation:

Ionic bonds are formed when a metal loses electrons and a non-metal gains said electrons.

3 0

3 years ago

Read 2 more answers

What would happen to the 2000kg buses kinetic energy if it was traveling twice as fast it was above

irinina [24]

If you double the speed you get 4 x the Kinetic energy.

8 0

3 years ago

At a particular point in orbit, a satellite in an elliptical orbit has a gravitational potential energy of 5200 MJ with respect

alukav5142 [94]

Answer:

Final kinetic energy, $K_f=4000\ MJ$

Explanation:

It is given that,

Initial gravitational potential energy of the satellite, $U_i=5200\ MJ$

Initial kinetic energy of the satellite, $K_i=4800\ MJ$

Final gravitational potential energy of the satellite, $U_f=6000\ MJ$

Let $K_f$ is the final kinetic energy of the satellite at that point. Using the conservation of energy to find it as the energy of the satellite remains constant.

$U_i+K_i=U_f+K_f$

$K_f=U_i+K_i-U_f$

$K_f=5200+4800-6000$

$K_f=4000\ MJ$

So, the final kinetic energy of the satellite at that point is 4000 MJ. Hence, this is the required solution.

6 0

3 years ago