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8090 [49]
4 years ago
13

Calculate the potential difference across a 25-Ohm. resistor if a 0.3-A current is flowing through it.

Physics
2 answers:
Sveta_85 [38]4 years ago
6 0

Answer:

7.5 V

Explanation:

nikdorinn [45]4 years ago
4 0

Answer:7.5V

Explanation:

Ohm's law, V=IR

so, V=0.3×25

V=7.5V

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You shake a bottle of soda and take off the cap. If the soda shoots out of the
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A. 16.9 m

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3 years ago
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If an engine does 660 J of work in 10 seconds, its average power is ...
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66w

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4 0
2 years ago
An electron enters the gap between the plates of a capacitor at the center of the gap traveling parallel to theplates at 2.0 x 1
Svetlanka [38]

Answer:

How far will the electron travel beforehitting a plate is 248.125mm

Explanation:

Applying Gauss' law:

Electric Field E = Charge density/epsilon nought

Where charge density=1.0 x 10^-6C/m2 & epsilon nought= 8.85× 10^-12

Therefore E = 1.0 x 10^-6/8.85× 10^-12

E= 1.13×10^5N/C

Force on electron F=qE

Where q=charge of electron=1.6×10^-19C

Therefore F=1.6×10^-19×1.13×10^5

F=1.808×10^-14N

Acceleration on electron a = Force/Mass

Where Mass of electron = 9.10938356 × 10^-31

Therefore a= 1.808×10^-14 /9.11 × 10-31

a= 1.985×10^16m/s^2

Time spent between plate = Distance/Speed

From the question: Distance=1cm=0.01m and speed = 2×10^6m/s^2

Therefore Time = 0.01/2×10^6

Time =5×10^-9s

How far the electron would travel S =ut+ at^2/2 where u=0

S= 1.985×10^16×(5×10^-9)^2/2

S=24.8125×10^-2m

S=248.125mm

4 0
3 years ago
Determine the average speed of a runner who runs 15 Km in one hour and 30 minutes
igor_vitrenko [27]
V=d/t
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v=0.16 km/min
7 0
3 years ago
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