3 years ago

Which of the following is the best definition of vectors?

Physics

2 answers:

wlad13 [49]3 years ago

8 0

The answer is a. Hope this helps :)

julia-pushkina [17]3 years ago

8 0

The correct choice is:

a) Quantities described by both magnitude and direction

In fact, vectors are characterized by a magnitude and a direction. An example of vector quantity is velocity: the velocity of an object consists of a magnitude (which corresponds to the speed of the object) and a direction.

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A group of runners complete a 26.2 mile marathon in 3.4 hours. The distance between the start and finish lines is 12.2 miles. Wh

NNADVOKAT [17]

26.2/3.4 would be the average velocity for the run.

7.7 miles/hr

8 0

3 years ago

Read 2 more answers

If two charged objects in a laboratory are brought to a distance of 0.22 meters away from each other. What is

zysi [14]

Answer:

$q_2=2.47\times 10^{-4}\ C$

Explanation:

The charge on one object, $q_1=9.9\times 10^{-5}\ C$

The distance between the charges, r = 0.22 m

The force between the charges, F = 4,550 N

Let q₂ is the charge on the other sphere. The electrostatic force between two charges is given by the formula as follows :

$F=\dfrac{kq_1q_2}{r^2}\\\\q_2=\dfrac{Fr^2}{kq_1}\\\\q_2=\dfrac{4550\times (0.22) ^2}{9\times 10^9\times 9.9\times 10^{-5}}\\\\q_2=2.47\times 10^{-4}\ C$