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lana66690 [7]
3 years ago
9

How does kinetic energy connect or relate to Newtons second law of motion?

Physics
2 answers:
Orlov [11]3 years ago
8 0
Newtons second law of motion: "T<span>he acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object."

kinetic energy is energy that an object posses while in motion and to get that it must have potential energy.</span>
Darya [45]3 years ago
7 0

The second law of motion is: <em>"Force equals mass times acceleration"</em>. Newton’s first law says that a net external force results in a change in motion; thus, we see that a net external force causes acceleration, which is <em>"the rate of change of velocity per unit of time"</em>. In physics, the kinetic energy of an object is the energy that it possesses due to its motion and it is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. So Kinetic energy is somewhat related to acceleration which is used in Newton's second law of motion.

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Electron guns are used in X-ray tubes. The electrons are accelerated through a relatively large voltage and directed onto a meta
Paul [167]

Answer:

(a) Number of electrons per second strike the target is 3.125 x 10¹⁵.

(b) Charge that strikes the target in 0.750 s is 3.75 x 10⁻⁴ C .

Explanation:

(a) Let n be the number of electrons per second strike the target. We know that current (I) is given by the relation :

I = n x e

Here e is charge of electron.

Substitute 0.500 x 10⁻³ A for I and 1.6 x 10⁻¹⁹ C for e in the above equation.

0.500 x 10⁻³ = n x 1.6 x 10⁻¹⁹

n = 3.125 x 10¹⁵

(b) Let q be the charge that strikes the target. We know that :

q = I x t

Here I is current and t is time.

Substitute 0.500 x 10⁻³ A for I and 0.750 s for t in the above equation,

q = 0.500 x 10⁻³ x 0.750

q = 3.75 x 10⁻⁴ C

3 0
4 years ago
Which statement best defines work? (2 points) Group of answer choices
Irina18 [472]

Answer:last choice is correct. Work is equally to force times distance

Explanation:to generalize, W is equal to to force as a function of distance integrated over distance. Work is equivilent to energy. See work/force equivalency

4 0
2 years ago
When riding on a plane, passengers not only move through space but they move through______as well.
Ludmilka [50]

Answer:

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Which of the following statements about current are true? (i) In metal wires,it is the negative charges (Le, the electrons) that
IRINA_888 [86]

Answer:

d. All three statements are true.

Explanation:

In the metals the electrons are the charge carriers and they are the only mobile charges causing the flow of current when subjected to potential difference.

The electrons being negatively lead to the flow of current in opposite direction. The direction of the current is opposite to the direction of the negative charges.

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4 years ago
The carbon monoxide molecule (CO) consists of a carbon atom and an oxygen atom separated by a distance of
valkas [14]

Answer:

6.46*10^-11m

Explanation:

We can use the equation of the center of the mass of two atoms

Xcm=\frac{mcxc+moxo}{mc+mo}

If we take the origin at the center of the molecule carbon monoxice, xc will be 0, so

Xcm=\frac{moxo}{mc+mo}=\frac{xo}{mc/mo+1}

Xcm=\frac{1.13.10^-3}{0.750mo/mo+1}=6.46*10^-11m

7 0
3 years ago
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