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Flura [38]
3 years ago
12

Find an equation relating the rate of change of kinetic energy to the rate of change of velocity

Physics
1 answer:
alexdok [17]3 years ago
4 0

Answer:

djjdjfjfntjfjjfjxuxidie

Explanation:

hjdjfjjfjf urfjfjfuuijjjjjjjjjkjsjjsj

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The displacement, time, and direction
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If red light hits a red filter, what kind of light comes through the filter?
Roman55 [17]
A. red, is the correct answer. A red filter only lets red light through, whether white or red light passes through it.
Hope this helps, and have a great day!

8 0
4 years ago
Why does a magnet attract a steel nail
SVEN [57.7K]

Answer:

The nail will stick to the bar magnet because it will become magnetized, and it's metal. The presence of the nearby north pole rearranges the magnetic domains inside the steel so that their south poles all point toward the north pole of the permanent magnet. As a result, the other end of the nail becomes a north pole.Magnets attract iron due to the influence of their magnetic field upon the iron. ... When exposed to the magnetic field, the atoms begin to align their electrons with the flow of the magnetic field, which makes the iron magnetized as well. This, in turn, creates an attraction between the two magnetized objects.

7 0
3 years ago
A student finds an unlabeled liquid container in his lab. He notices that the container has two liquids. Since the two liquids h
raketka [301]

Answer:

\rho = 1848.03 kg m^{-3}

Explanation:

given data:

density of water \rho = 1 gm/cm^3 = 1000 kg/m^3

height  of water  = 20 cm  =0.2 m

Pressure  p = 1.01300*10^5 Pa

pressure at bottom

P =  P_{fluid} + P_{h_2 o}

P   = P_{fluid}  + \rho g h

P_{fluid}  = P - \rho g h

                 = 1.01300*10^5 - 1000*0.2*9.8

                 = 99340 Pa

p_{fluid}  = P_{atm} + \rho g h_{fluid}                       h_[fluid} = 0.307m

99340 = 104900 + \rho *9.8*0.307

\rho = 1848.03 kg m^{-3}

5 0
3 years ago
Ethan and Rebecca are riding on a merry-go-round. Ethan rides on a horse at the outer rim of the circlar platform, twice as far
xz_007 [3.2K]

Answer:

Ethan's tangential speed is twice as Rebecca's.

Explanation:

Let r be the distance from the center of the platform to Rebecca's horse, v_R Rebecca's tangential speed, v_E the Ethan's tangential speed and \omega the merry-go-round angular speed. The distance from the center of the platform to Ethan's horse is 2r. The angular speed is related to the tangential speed by the equation:

\omega =\frac{v}{R}

Since the angular speed is the same for Ethan and Rebecca, we have that:

\frac{v_E}{2r}=\frac{v_R}{r}

Now, solving for v_E we get:

v_E=2v_R

It means that Ethan's tangential speed is twice as Rebecca's.

3 0
3 years ago
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