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AleksAgata [21]
3 years ago
10

Please define newtons 1st law of motion.

Physics
2 answers:
dezoksy [38]3 years ago
7 0

Explanation:

Newton's first law states that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.

ExtremeBDS [4]3 years ago
6 0
It says an object will remain at rest unless external forces act upon it.
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A rock has a mass of 2.00 kg on the moon. What is the mass of the rock on the earth?
Illusion [34]

Answer:

2kg

Explanation:

Whereas weight of an object depends on acceleration due to gravity, the mass remains constant because the number of atoms in an element remains constant. Therefore, despite the variation of acceleration due to gravity on moon and earth, the mass will remain 2 kg but tge weight will change.

6 0
3 years ago
Archimedes' principle states that an object placed in a fluid will experience a buoyant force equal to the weight of the fluid i
Svetach [21]

Answer:

yes

Explanation:

Archimedes' principle states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces

5 0
3 years ago
The 10 kg dancer leaps into the air with an initial velocity of 5 m/s at angle of 45° from the floor. How far will she travel in
natulia [17]

Answer:

2.55 m

Explanation:

The motion of the dancer is the motion of a projectile, which consists of 2 independent motions:

- A uniform motion (constant velocity) along the horizontal direction

- A uniformly accelerated motion (constant acceleration) along the vertical direction

The horizontal range of a projectile can be found by using the equations of motions along the two directions, and it is given by:

d=\frac{v^2 sin(2\theta)}{g}

where

v is the intial velocity

\theta is the angle of projection

g=9.8 m/s^2 is the acceleration due to gravity

For the dancer in this problem, we have:

v = 5 m/s

\theta=45^{\circ}

Therefore, the horizontal range is:

d=\frac{(5)^2(sin 2\cdot 45^{\circ})}{9.8}=2.55 m

5 0
3 years ago
One source error is __________, and one of its solutions is having a lie scale inserted into the assessment. a. social desirabil
liberstina [14]

One source error is <u>deliberate deception </u>and one of its solutions is having a lie scale inserted into the assessment.]

<h3>What is the error?</h3><h3 />

An error is a mistaken or erroneous action. In some contexts, an error is interchangeable with a mistake.

The discrepancy between the calculated value and the correct value is referred to as an "error" in statistics.

When a person is completely aware of what they are doing, they are engaging in deception. They are concealing the truth and making a deliberate decision to tell someone something that is false.

When describing a magic trick, such as a sleight of hand, the term deception can also be used.

When there are repetitive questions that ask the same questions over and over with different formats to check if the responses are constant over time, lie scales are utilized.

Hence one source error is <u>deliberate deception </u>and one of its solutions is having a lie scale inserted into the assessment.

To learn more about the error refer to the link;

brainly.com/question/13286220

5 0
2 years ago
What latitudes experience both summer and winter?
sergiy2304 [10]

There are only two times of the year when the Earth's axis is tilted neither toward nor away from the sun, resulting in a equal amount of daylight and darkness at all latitudes. These events are referred to as Equinoxes.The word equinox is derived from two Latin words - aequus (equal) and nox (night). At the equator, the sun is directly overhead at noon on these two equinoxes. How do the climatological temperature patterns follow the four seasons? The temperatures are pretty much the same when comparing early winter to late winter and pretty much the same when comparing early summer to late summer. However, late Fall is much colder than early Fall and late Spring is much warmer than early Spring. Why is that? The reason is linked to the changing of the solar sun angle during each season. In the Fall, the sun angle is always getting lower and in the Spring it is always getting higher. From this it would make sense that late Fall is much colder than early Fall and late Spring is much warmer than early Spring.  In the winter, the sun angle is INCREASING and in the summer the sun angle is DECREASING. This fact causes temperatures to be pretty much the same when comparing early winter to late winter and pretty much the same when comparing early summer to late summer. The cumulative cooling of the ground and ocean is partially offset by an increasing sun angle in the winter and the cumulative warming of the ground and ocean is partially offset by a decreasing sun angle in the summer. This causes the Spring and Fall seasons to seem much quicker in duration than the Summer and Winter seasons.

<h2><u>I know this is long... but does this help??</u></h2>
7 0
3 years ago
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