All categories

4 years ago

A vector has what and direction

Physics

2 answers:

galben [10]4 years ago

8 0

A vector Quantity has MAGNITUDE and direction, so the ‘what’ is Magnitude.

lys-0071 [83]4 years ago

4 0

Vector, in physics, a quantity that has both magnitude and direction. It is typically represented by an arrow whose direction is the same as that of the quantity and whose length is proportional to the quantity's magnitude. Although a vector has magnitude and direction, it does not have position.

You might be interested in

A wave has an amplitude of 0.2 cm.

Anettt [7]

The distance between the resting point and maximum height of the wave is 0.2 cm.

The amplitude is measured from the resting point up to the highest point of the wave.

3 0

3 years ago

Can someone check if what i wrote so far makes sense and if i made a mistake.

Serjik [45]

I don't really know what it's about but everything looks okay to me. There might be some mistakes on the last sentence but i'm not completely sure.

7 0

3 years ago

Read 2 more answers

Calculate the difference between<br>the points B (-2, 3) and C (-5,8)

zzz [600]

Explanation:

the answer to this question would be mj.us 1 and minus 3

3 0

3 years ago

A constant magnetic field passes through a single rectangular loop whose dimensions are 0.35 m × 0.55 m. The magnetic field has

Pani-rosa [81]

Answer:

Part a)

$EMF = 0.38 V$

Part b)

$\frac{dA}{dt} = 0.43 m^2/s$

Explanation:

Part a)

Initial value of magnetic flux is given as

$\phi_1 = BAcos\theta$

$\phi_1 = (2.1)(0.35 \times 0.55) cos65$

so we have

$\phi_1 = 0.17 Wb$

Final flux through the loop is given as

$\phi_2 = 0$

now EMF is given as

$EMF = \frac{\phi_1 - \phi_2}{\Delta t}$

$EMF = \frac{0.17 - 0}{0.45}$

$EMF = 0.38 V$

Part b)

If magnetic field is constant while Area is changing

So EMF is given as

$E = Bcos65 \times \frac{dA}{dt}$

$0.38 = 2.1 cos65(\frac{dA}{dt})$

$\frac{dA}{dt} = 0.43 m^2/s$

5 0

3 years ago

A 200 kg crate is pulled along a level surface by an engine. the coefficient of friction between crate and surface is 0.4.

siniylev [52]

Normal force = 200(9.81) = 1962 N
Friction force = 1962 * .4 = 784.8
power = force * distance / time = 784.8 * 5 = 3924 Watts

Watts = Joules / sec
3924 x 180 = 706,320 Joules

4 0

3 years ago

Read 2 more answers