3 years ago

What type of boat requires navigation lights?

1 answer:

4 0

All the boats that are operating from sunset to sunrise must have navigation lights.
Navigation lights are also for our safety, and it should be powered on after sunset to sunrise. Because at night due to darkness, if it is on, it is an indication that boat is there. Some of the boats which should have navigation lights are sailboats, powerboats, rowboats etc.

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What is the relationship between electricity and magnetism? A. A moving magnet creates a current, and a still magnet creates a c

motikmotik

I'm trusting my gut and saying it's B.

5 0

3 years ago

What is the difference between a homogeneous mixture and heterogeneous mixture?

Semenov [28]

Homogenous mixtures don't have visible constituents. An example of this would be water.

Heterogenous ones have visible constituents and an example would be if you put some dirt in water and then it wouldn't mix properly and you could see the dirt in it.

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3 years ago

A particle moves in a velocity field V(x, y) = x2, x + y2 . If it is at position (x, y) = (7, 2) at time t = 3, estimate its loc

MArishka [77]

Answer:

New location at time 3.01 is given by: (7.49, 2.11)

Explanation:

Let's start by understanding what is the particle's velocity (in component form) in that velocity field at time 3:

$V_x=x^2=7^2=49\\V_y=x+y^2=7+2^2=11$

With such velocities in the x direction and in the y-direction respectively, we can find the displacement in x and y at a time 0.01 units later by using the formula:

$distance=v\,*\, t$