3 years ago

The risk of earthquakes is high along the Pacific coast of the United States

2 answers:

8 0

<span>High earthquake risk zones arise where two plate boundaries meet which in this case is the Pacific and North American plates.</span>

OverLord2011 [107]3 years ago

5 0

Idk if this is a true or false question but if it is then that statement is true

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What is the resistance of a circuit with a voltage of 10 V and current of 5A is?

wolverine [178]

Resistance = (voltage) / (Current)

Resistance = (10 V) / (5 A)

Resistance = 2 ohms.

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3 years ago

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A proton is initially moving west at a speed of 1.10 106 m/s in a uniform magnetic field of magnitude 0.281 T directed verticall

kifflom [539]

Answer:

so here it will move in circle with radius 4.06 cm

Explanation:

As we know that proton is moving towards west while the magnetic field is vertically upwards

So here the force on the proton must be perpendicular to the velocity

So here we have

$F = q(\vec v \times \vec B)$

so here we have

$F = qvB sin90$

since force is perpendicular to the velocity so here it must be centripetal force

here we have

$\frac{mv^2}{R} = qvB$

so we have

$R = \frac{mv}{qB}$

$R = \frac{(1.66 \times 10^{-27})(1.10 \times 10^6)}{(1.6 \times 10^{-19})(0.281)}$

$R = 4.06 cm$

so here it will move in circle with radius 4.06 cm

8 0

3 years ago

Which laboratory activity involves a chemical change?

Elza [17]

A) leaving a copper penny in vinegar until it turns green

6 0

2 years ago

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Which materials are made of one kind of atom

kirill115 [55]

Elements are pure substances that are composed or made out of only 1 kind of atom.

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3 years ago

How much force is needed to accelerate a 1-kilogram toy car at a rate of 2 meters per second per second?

kozerog [31]

F = ma, where m = mass in kg, a = acceleration in m/s², F = Force in Newton

F = 1 * 2

F = 2 N

Force needed is 2 Newtons.

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3 years ago

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