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Lilit [14]
3 years ago
10

Do sound waves must have a medium to travel but elctromagnetic waves cannot

Physics
1 answer:
ra1l [238]3 years ago
4 0
No don't feel feel like they do
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According to research, college graduates are more likely to engage in all of the following EXCEPT:
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in vision, the ____ stream controls identification of an object, and the ____ stream controls action toward the object.
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5 0
3 years ago
a torch bulb is rated 2.5V and 750mA. Calculate its power,its resistance and the energy consumed if this bulb lighted for 4 hour
Hatshy [7]
Using Ohm's Law, we can derived from this the value of resistance. If I=V/R, therefore, R = V/I
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I = Current = 750 mA

R = V/I = 2.5/ (750 x 10^-3)
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3 0
3 years ago
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