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Marrrta [24]
3 years ago
8

The law of reflection states that the angle of reflection is equal to the angle of

Physics
1 answer:
Natali [406]3 years ago
3 0

The law of reflection states that the angle of reflection is equal to the angle of Incidence .

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Atomic mass can change through the process of fusion. Another way is, it can also change in nuclear fusion.
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a school bus takes 0.50 hours to reach the school from your home. if the average speed of the bus is 20km/h, what is displacemen
Kazeer [188]

Answer:

10 km

Explanation:

.5 hr * 20 km/hr  = 10 km

8 0
1 year ago
Today's topic
babunello [35]

Answer:

While a body is said to be in motion if it changes its position with respect to immediate surroundings.

A body is said to be in uniform motion if it covers equal distances in equal interval of time.

A body is said to be in non-uniform motion if it covers unequal distances in equal interval of time or vice-versa

4 0
2 years ago
An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.275 T. If the kinetic energy of the electr
xxMikexx [17]

Answer:

Radius, r=2.14\times 10^{-5}\ m

Explanation:

It is given that,

Magnetic field, B = 0.275 T

Kinetic energy of the electron, E=4.9\times 10^{-19}\ J

Kinetic energy is given by :

E=\dfrac{1}{2}mv^2

v=\sqrt{\dfrac{2E}{m}}

v=\sqrt{\dfrac{2\times 4.9\times 10^{-19}}{9.1\times 10^{-31}}}            

v = 1037749.04 m/s

The centripetal force is balanced by the magnetic force as :

qvB\ sin90=\dfrac{mv^2}{r}

r=\dfrac{mv}{qB}

r=\dfrac{9.1\times 10^{-31}\times 1037749.04}{1.6\times 10^{-19}\times 0.275 }

r=2.14\times 10^{-5}\ m

So, the radius of the circular path is 2.14\times 10^{-5}\ m. Hence, this is the required solution.

3 0
2 years ago
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30 Points 4 correct answer!!! ^u^
lakkis [162]
Lithium has an atomic number of 3 so right away all the answer choices are eliminated except A., and oxygen does have 8 neutrons, boron 5 electrons, and neon a mass of 20
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3 years ago
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