3 years ago

What do we know about the relative strength of the electric field around each object?

1 answer:

6 0

Answer:

A charged object in an electric field experiences a force due to the field. The electric field strength, E, at a point in the field is defined as the force per unit charge on a positive test charge placed at that point.

Explanation:

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Alvin paddled for 44 hours with a 33-km/h current to reach a campsite. The return trip against the same current took 77 hours.

sveta [45]

Answer:

121km/h

Explanation:

Let speed of boat=xkm/h

Speed of water flow=33 km/h

Speed upstream=(x-33)km/h

Speed downstream=(x+33)km/h

Time=44 hrs

Time =77 hrs

We have to find the speed of boat.

$Distance=Speed\times time$

Using the formula

Upstream distance=Downstream distance

$(x-33)\times 77=(x+33)\times 44$

$77x-2541=44x+1452$

$77x-44x=1452+2541$

$33x=3993$

$x=\frac{3993}{33}=121$

Hence, the speed of boat=121km/h

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