Waves carry energy through matter or space
A visible white and red light indicate a second craft is coming from the starboard (right) side.
<h3>What is a navigation light?</h3>
A navigation light often referred to as a running light or position light, is a source of illumination aboard a ship, plane, or spacecraft that provides information about the location, course, or condition of the vehicle. Red and green navigation lights help with traffic control by indicating the orientation of the craft.
All navigation light systems typically comprise one or more white lights as well as red and green sidelights that designate the boat's port and starboard sides.
Having a flashlight on board is also essential since you never know when a navigation light may go out.
The typical navigational lights:
SidelightsSternlightMasthead lampoverall white lighting
Sidelights: Because they are visible to other vessels approaching from the side or head-on, these red and green lights are sometimes known as combo lights. The port (left) and starboard (right) sides of a ship are indicated by the red and green lights, respectively.
sternlight: Only from behind or almost behind the ship can one see the sternlight.
To know more about navigation light refer to: brainly.com/question/3465458
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Potential Energy = (mass) x (gravity) x (height).
But (mass) x (gravity) is 'weight', so
Potential Energy = (weight) x (height) .
The question says that the object is 25 N .
The ' N ' stands for ' Newton ' and that's a unit of force,
so we know that this is the weight of the object.
Potential Energy = (25 N) x (3 meters)
= 75 Newton-meters
= 75 Joules .
Answer:
170⁰C
Explanation:
α= ΔL/(lo×Δt)
arranging for Δt
Δt =ΔL/(lo×α)
here Δt is change in temperature, ΔL is change in length,lo is original length and is α coefficient of linear expansion and for copper its value is 17×10^-6
Δt =(0.00130)/(0.450×17×10^-6)
Δt=169.9⁰C
Δt= 170⁰C