## DeBrogile Module

$\lambda=\frac{h}{p}$

Alysia Garcia 1B
Posts: 40
Joined: Wed Feb 21, 2018 3:02 am

### DeBrogile Module

For this problem:
Calculate the wavelength of a 275 kg single-seat electric car traveling at a speed of 125 km.hr-1. Do electric cars have wavelike properties?

I converted the 125 km.hr-1 to meters per second then used that number for the velocity in the DeBrogile Equation but I'm still getting the wrong answer. Are we not supposed to convert it?

Sara Veerman-1H
Posts: 31
Joined: Fri Apr 06, 2018 11:05 am

### Re: DeBrogile Module

I believe it needs to be converted. What is the answer supposed to be?

Eli Esagoff_1I
Posts: 38
Joined: Fri Apr 06, 2018 11:02 am

### Re: DeBrogile Module

It should definitely be converted. I would recommend checking your conversion factors (you should multiply by 1,000 and divide by 3,600)!

Andre-1H
Posts: 39
Joined: Fri Apr 06, 2018 11:01 am

### Re: DeBrogile Module

Are you getting the wrong answer or is it because a car's mass influences its wavelength to be negligible that there is confusion. The unit for velocity in the equation is m/s so you did the right thing by converting it.

Tarek Abushamma
Posts: 30
Joined: Fri Apr 06, 2018 11:01 am

### Re: DeBrogile Module

SI unit for distance is the meter and for time is the second, so you did the correct thing by converting it.

Elena 1H
Posts: 27
Joined: Fri Apr 06, 2018 11:04 am
Been upvoted: 1 time

### Re: DeBrogile Module

I agree it definitely needs to be converted so maybe just check your conversion values.

SamanthaGrohe1B
Posts: 31
Joined: Fri Apr 06, 2018 11:03 am

### Re: DeBrogile Module

you definitely needed to convert the value as it cannot be used in equations unless it is written in the standard SI units of meters for distance or length measurements and seconds for time measurements