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solniwko [45]
3 years ago
10

Use the right-hand rule for magnetic force to determine

Physics
1 answer:
Sphinxa [80]3 years ago
5 0
The charge on the moving particle
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Suppose a car of mass m is moving at a constant speed v of
SIZIF [17.4K]

Answer:

The angle of banked curve that makes the reliance on friction unnecessary is

\arcsin(v^2/(gR))

Explanation:

In order the car to stay on the curve without friction, the net force in the direction of radius should be equal or smaller than the centripetal force. Otherwise the car could slide off the curve.

The only force in the direction of radius is the sine component of the weight of the car

w_r = mg\sin(\theta)

The cosine component is equivalent to the normal force, which we will not be using since friction is unnecessary.

Newton’s Second Law states that

F_{net} = ma = mg\sin(\theta)\\\sin(\theta) = a/g

Also, the car is making a circular motion:

a = \frac{v^2}{R}

Combining the equations:

\sin(\theta) = \frac{a}{g} = \frac{v^2/R}{g} = \frac{v^2}{gR}

Finally the angle is

\arcsin(v^2/(gR))

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3 years ago
Need help please in physics ​
AnnZ [28]

Answer:

the switching circuitry is opened the soft iron armature is replaced to tasty le macha the switching circuitry is closed explain what happens when the switch circuit is a wonder you know about the characteristics of open to close this which right take the example of an electric generator for an electric motor which rotates in half rotation and change the armature and just try it ok I am sorry

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2 years ago
A convex lens bulges outward in its center. and it refracts light rays towards its center. Which represents a convex lens? A) A
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Answer:

Its A

Explanation:

The lens bulges outward in its center, like reading glasses.

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3 years ago
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A street lamp weighs 150N. It is supported by two wires that form an angle of 120° with each other. The tensions in each wire ar
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Answer:

60

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Which measurements are equal to 321 decimeters? Check all that apply.
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32,100 Millimeters
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