3 years ago

Horizontal circular motion questions:

1 answer:

7 0

1. D, constant
Force must be in the direction of the velocity to change speed.

2. B. to the center of the curvature
This allows the vehicle to complete the turn.

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The amount of kinetic energy an object has depends on its.

dalvyx [7]

<span>The amount of kinetic energy an object has
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An electron follows a helical path in a uniform magnetic field of magnitude 0.340 T. The pitch of the path is 6.00 µm, and the m

dedylja [7]

Answer:

The electron's speed is 34007.35 m/s

Explanation:

It is given that,

Magnetic field, B = 0.34 T

Magnetic force on the electron, $F=1.85\times 10^{-15}\ N$

The electron follows a helical path. We have to find the speed of an electron. The formula for magnetic force is given by :

$F=B\times q\times v$

q = charge on an electron, $q=1.6\times 10^{-19}\ C$

v = velocity of an electron

$v=\dfrac{F}{Bq}$

$v=\dfrac{1.85\times 10^{-15}\ N}{0.34\ T\times 1.6\times 10^{-19}\ C}$

v = 34007.35 m/s

Hence, this is the required solution.

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3 years ago

Does water pressure depend on the total amount of water present? <br><br> (Will pick brainliest)

yaroslaw [1]

Answer:

No, because pressure is determined by force and the area over which that force acts.

Explanation:

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3 years ago

Releases hydrogen ions in water is that acid or bases?

wolverine [178]

Acid it is i believe........

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2 years ago

A garage door opener has a power rating of 350 watts.

Lelechka [254]

We Know, Power = Energy/Time
Substitute the known value. which is P = 350 watt, & T = 30 sec
350 = E/30
E = 350 * 30
E = 1050 Joules.

So, your answer is 1050 Joules.
Hope this helps! Keep studying!

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