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3 years ago

The electric field force is a ___________ quantity.

Physics

1 answer:

Rufina [12.5K]3 years ago

4 0

Answer:

Explanation:

The force due to an electric field is a vector quantity because it has direction and magnitude just like Newton's Law

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Using energy considerations and assuming negligible air resistance, show that a rock thrown from a bridge 23.5 m above water wit

Elodia [21]

As stated in the statement, we will apply energy conservation to solve this problem.

From this concept we know that the kinetic energy gained is equivalent to the potential energy lost and vice versa. Mathematically said equilibrium can be expressed as

$\Delta KE = \Delta PE$

$\frac{1}{2}mv_f^2-\frac{1}{2} mv_0^2 = mgh_2-mgh_1$

Where,

m = mass

$v_{f,i}$ = initial and final velocity

g = Gravity

h = height

As the mass is tHe same and the final height is zero we have that the expression is now:

$\frac{1}{2}v_f^2-\frac{1}{2} v_0^2 = gh_2$

$\frac{1}{2} (v_f^2-v_0^2) = gh_2$

$(v_f^2-v_0^2) = 2gh_2$

$v_f = \sqrt{2gh_2+v_0^2}$

$v_f = \sqrt{2(9.8)(23.5)+13.6^2}$

$v_f = 25.4m/s$

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3 years ago

WILL GIVE BRAINLIEST DON'T KNOW IF I SPELLED IT WRONG BUT U KNOW WHAT I MEAN:)

eimsori [14]

Answer: well jabberwocky means like happy or like good vs evil

Synonyms: abracadabra, double talk, gibberish, gobbledygook, mumbo jumbo, babble, blather, blatherskite, gabble, jabber and jargon

Definition: invented or meaningless language; nonsense.

Explanation:

3 0

3 years ago

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Mariyam, a marine biologist, measures the length of a great white shark at 4.5 m long and its teeth at an average of 50 mm long.

TiliK225 [7]

The length should be 450 cm
and tooth length should be 0.45 cm i believe

hope i was able to help out!!! :)

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3 years ago

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which of the following is not a property of an acid? reacts with metals bitter taste reacts with carbonate turns litmus paper re

notka56 [123]

The property that does not describe an acid is that it has a bitter taste. Acids have a sour taste, Bases have a bitter taste.

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4 years ago

Two wheels initially at rest roll the same distance without slipping down identical planes. Wheel B has twice the radius, but th

OlgaM077 [116]

Answer:

Their translational kinetic energies are the same

Explanation:

The translational kinetic energy of an object is given by the formula:

$KE = 0.5 mv^2$

Where m = the mass of the object and

v = the linear speed of the object

From the question, it is stated that wheel A has the same mass as wheel B, that is $m_A = m_B$

Linear speed is also a function of the distance covered. Since both wheels cover the same distance within the same interval, we can conclude that $v_A = v_B$

Both wheels A and B have equal speed and mass, this means that their translational kinetic energy is the same.

Note that translational kinetic energy is not a function of the radius

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3 years ago