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3 years ago

Which quantity is a vector quantity?

1 answer:

4 0

A vector quantity has both magnitude and direction. In other words, it refers to a physical quantity that is defined by both magnitude and direction. Some of the examples of vectors include displacement, force, velocity, acceleration, and momentum.

<h2>Further Explanation</h2>

Practical example of a vector: the GPS (global positioning system) in your car is meant to guide you through your journey; however, the GPS will provide two sets of information that will help you get to your destination such as 500 feet and then turn left. That is a perfect example of a vector.

An arrow is used to represent a vector and it is in the same direction as the quantity and also its length is proportional to the magnitude of the quantity.

Before a quantity can be said to be a vector, it must be characterized not only by magnitude and direction but must obey some specific rules of combination, that is, it must conform to some basic rules of combination.

For example, for a quantity to be a vector, it must obey the rule of vector addition, which is symbolically expressed as A + B = C.

Therefore, force, acceleration, momentum, velocity, displacement, electromagnetic fields are all typical example of a vector quantity.

LEARN MORE:

which quantity is a vector quantity brainly.com/question/3579752
Which quantity is a vector quantity? brainly.com/question/2912049

KEYWORDS:

vector quantity
acceleration
force
magnetic field
GPS

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a man of mass 50 kg climbs up stairs each of height 0.2 m in 20 seconds .calculate the power of the man

Delicious77 [7]

How many stairs?
You can use this to find the work
U
W=mgh
And the power by
P=W/T

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3 years ago

A risk-free, zero-coupon bond with a $5000 face value has ten years to maturity. The bond currently trades at $3650. What is the

PtichkaEL [24]

Answer:

The Yield to Maturity of the bond is YTM = 3.20%

Explanation:

Mathematically the Yield to Maturity of the bond YTM is as follows

$YTM = \frac{C + \frac{F-P}{n} }{\frac{F+P}{2} }$

Where C is the amount of payment to be made = $0

P is the price i.e the present value =$3650

F is the face value of the bond=$5000

n is the year of maturity of the bond = 10 years

$YTM = \frac{0+\frac{5000-3650}{10} }{\frac{5000+3650}{2} } * \frac{100}{1}$

$=3.20$ %

5 0

3 years ago

A car accelerates from rest at -3.00m/s^2. What is the velocity at the end of 5.0s? What is the displacement after5.0s?

Andrew [12]

Speed = (acceleration) x (time)
Velocity = (speed) in (direction of the speed)

Speed = (-3 m/s²) x (5 s) = 15 m/s
Velocity =
   (15 m/s) in the direction opposite to the direction you call positive.

Displacement = (distance between start-point and end-point)
   in the direction from start-point to end-point.

Distance = (1/2) (acceleration) (time)²
Distance = (1/2) (3 m/s²) (5 s)²
   = (1/2) (3 m/s²) (25 s²) = 37.5 meters

Displacement =
   37.5 meters in the direction opposite to the direction you call positive.

5 0

3 years ago

A student pushes a 0.2 kg box against a spring causing the spring to compress 0.15 m. When the spring is released, it will launc

german

Answer:

The maximum height the box will reach is 1.72 m

Explanation:

F = k·x

Where

F = Force of the spring

k = The spring constant = 300 N/m

x = Spring compression or stretch = 0.15 m

Therefore the force, F of the spring = 300 N/m×0.15 m = 45 N

Mass of box = 0.2 kg

Work, W, done by the spring = $\frac{1}{2} kx^2$ and the kinetic energy gained by the box is given by KE = $\frac{1}{2} mv^2$

Since work done by the spring = kinetic energy gained by the box we have

$\frac{1}{2} mv^2$ = $\frac{1}{2} kx^2$ therefore we have v = $\sqrt{\frac{kx^2}{m} }$ = $x\sqrt{\frac{k}{m} }$ = $0.15\sqrt{\frac{300}{0.2} }$ = 5.81 m/s

Therefore the maximum height is given by

v² = 2·g·h or h = $\frac{v^2}{2g}$ = $\frac{5.81^{2} }{2*9.81}$ = 1.72 m

6 0

3 years ago

What must happen to an atom of magnesium in order to become a magnesium ion

Zielflug [23.3K]

I would assume that the magnesium would have to come into contact with an ion in order to become a magnesium ion.

6 0

3 years ago