First you combine the like terms which are the Ws.
And if there's no number in front of the variable (w in this case) it
Answer:
Given:
Mass of the tennis ball=56.5 g
wavelength=5400 Angstroms
De-Broglie Wavelength = 5400 Angstrom.
= 5400 × 10⁻¹⁰ m.
Now, Using the Formula,
λ = h/mv
here,
h is the Planck's constant = 6.62 × 10⁻³⁴ J-s.
and v is the velocity of the tennis balls.
∴ 5400 × 10⁻¹⁰ = (6.62 × 10⁻³⁴)/ (0.054 × v)
⇒ 0.054v = (6.62 × 10⁻³⁴)/ (5400 × 10⁻¹⁰)
⇒ 0.054v = 0.0012 × 10⁻²⁴
⇒ v = 0.0012 × 10⁻²⁴/0.054
⇒ v = 0.023 × 10⁻²⁴ m/s.
Hence, the velocity of the tennis balls is 0.023 × 10⁻²⁴ m/s.
Learn more about average velocity here:
brainly.com/question/13372043
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Answer:
18
Step-by-step explanation:
The cheap answer is, you simply "grab the denominator of one and multiply it times the other's top and bottom", so let's do so,
To solve you would turn this into a fraction and simplify. An easier way on this problem is to look at the answers, they are all the same exact thing except for B. I am pretty certain B. is the correct answer.
