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anyanavicka [17]
3 years ago
10

PLEASE HELP!!!! WILL AWARD BRAINLIEST!!!!

Physics
2 answers:
Nina [5.8K]3 years ago
5 0

Answer:

Kepler did and stated that planets move in a elliptical orbit with the sun in the center.

kotegsom [21]3 years ago
5 0

Answer:

kepler

Explanation:

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What statement best explains their findings? A) The downward force of gravity is less on the notecard because it has less mass.
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Answer:

C) The upward force of air resistance is greater with the note card causing it to reach the ground slower.

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3 years ago
A boat of mass 225 kg drifts along a river at a speed of 21 m/s to the west. what impulse is required to decrease the speed of t
zzz [600]
The impulse required to decrease the speed of the boat is equal to the variation of momentum of the boat:
J=\Delta p=m \Delta v
where
m=225 kg is the mass of the boat
\Delta v=v_f-v_i=15 m/s-21 m/s=-6 m/s is the variation of velocity of the boat
By substituting the numbers into the first equation, we find the impulse:
J=m\Delta v=(225 kg)(-6 m/s)=-1350 N s
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4 years ago
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Hydrogen is in Group 1A of the periodic table, known as the alkali metals, although it obviously isn't a metal. What is the reas
jeka57 [31]
It's highly reactive and contains only one valence electron
6 0
3 years ago
Q2. You push a crate up a ramp with a force of 10 N. Despite your pushing, the crate slides down the ramp 4 m. How much work did
Ksivusya [100]

Answer:

40 J

Explanation:

From the question given above, the following data were obtained:

Force (F) = 10 N

Distance (s) = 4 m

Workdone (Wd) =?

Work done is simply defined as the product of force and distance moved in the direction of the force. Mathematically, we can express the Workdone as:

Workdone = force × distance

Wd = F × s

With the above formula, we can obtain the workdone as follow:

Force (F) = 10 N

Distance (s) = 4 m

Workdone (Wd) =?

Wd = F × s

Wd = 10 × 4

Wd = 40 J

Thus, 40 J of work was done.

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Water is flowing from a garden hose. A child places his thumb to cover most of those outlet, causing a thin jet of high speed wa
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Answer: maximum height= 40.8m

Explanation: shown in the attachment.

Goodluck

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