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Alenkinab [10]
3 years ago
14

What is the difference between speed and velocity?

Physics
1 answer:
alekssr [168]3 years ago
4 0
Speed does not include a direction, but velocity does.

       30 miles per hour north
and
       30 miles per hour west

Same speed.
Different velocity.
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Can someone please help me with this question? ASAP thank you!
Assoli18 [71]

did you get the answer

8 0
3 years ago
When laser light of wavelength 632.8 nm passes through a diffraction grating, the first bright spots occur at ± 17.8 ∘ from the
o-na [289]
The equation we use is mλ=dsinθ for intensity maximas. We are given at the first maximum (m=1), it occurs at 17.8 degrees. Thus we can solve for d by substituting known values into our equation.

(1) (632.8*10^-9m)=dsin(17.8) => d = 2.07*10^-6m

Next we want to find the angle at the second maximum (m=2) so we need to solve for θ.

(2) (632.8*10^-9m) = (2.07*10^-6m)sinθ

θ=37.69 degrees

Hopes this helps!

P.S. I hope this is right. If not sorry in advance.
3 0
3 years ago
The Millennium Falcon was constructed 43.6 m long. a) How fast is it traveling past Luke when he measures its length to be 30.1
Zinaida [17]

Answer:

a)0.5564c

b)43.6 m

Explanation:

Given proper length of falcrum L₀= 43.6 m

improper length L=30.1 m (when viewed from moving frame)

we know that L=L_{0}\sqrt{1-\frac{v^2}{c^2}}

30.1=43.6\sqrt{1-\frac{v^2}{c^2}

⇒\{1-\frac{v^2}{c^2}}=\frac{30.1}{43.6}

{1-\frac{v^2}{c^2}}=0.6904

\frac{v^2}{c^2}=0.3096

v^{2}=3096c^{2}

v=0.5564c

this is the required speed of falcon when it passes luke

b). Since Han solo is on the Falcon its reference frame will be falcon itself hence there wont be any change in the length of Falcon that its length will be

43.6 m

8 0
3 years ago
How does the number 10 relate to light, sound, force and motion?
Oksana_A [137]

Answer:

number 10 is the value of acceleration due to gravity.

8 0
3 years ago
How can heat be transferred?
Lyrx [107]
D because gamma rays and ultra violet rays are one of the examples of the three ways to transfer heart which is convection, radiation, and conduction.
5 0
3 years ago
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