Textbook 1B.21

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derinceltik1K
Posts: 51
Joined: Sat Aug 17, 2019 12:15 am

Textbook 1B.21

Postby derinceltik1K » Sat Oct 19, 2019 4:38 pm

1B.21 A baseball must weigh between 5.00 and 5.25 ounces (1 ounce 5 28.3 g). What is the wavelength of a 5.15-ounce base- ball thrown at 92 mph?
Which equations to use?

Cooper Baddley 1F
Posts: 100
Joined: Wed Sep 18, 2019 12:19 am

Re: Textbook 1B.21

Postby Cooper Baddley 1F » Sat Oct 19, 2019 4:45 pm

You need to change the weight from ounces to kg and the velocity from miles per hour to m/s. Then just use the de Broglie relationship lamba= h/p or h/mv.

Simon Dionson 4I
Posts: 107
Joined: Sat Sep 14, 2019 12:17 am

Re: Textbook 1B.21

Postby Simon Dionson 4I » Sat Oct 19, 2019 5:51 pm

We can tell the de Broglie equation must be used because it's relating wavelength, mass, and velocity. The de Broglie uses SI units so you'll have to convert the values given.


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