Answer:
595.73 X 10⁻⁶ V.
Explanation:
The magnetic field is towards the north with dip angle equal to 65 so the horizontal component of earth's magnetic field will be
H = 50 X 10⁻⁶ Cos 65 = 21.13 x 10⁻⁶ T.
length of rod L = 1.45 M
Velocity of rod = 70 km / h = 19.444 m /s
Since the top of the antenna rod is to have positive polarity , current induced in it will be from down to up . Magnetic field is towards the north .
To cut magnetic flux perpendicularly , rod should move towards the east .
We can easily get this direction by applying Fleming's right hand Rule.
Induced emf = H L v
= 21.13 x 10⁻⁶ X 1.45 X 19.444
= 595.73 X 10⁻⁶ V.
Answer:
<em>the mass of the original unstable particle is</em><em> 1115.08 MeV/c²</em>
Explanation:
The momentum of a particle is determined by:
p = e B R
where
- B is the magnetic field
- R is the radius of curvature
- e is the energy of the particle
Therefore,
p = e B R kg · m/s
We can transform the units to MeV/c and we do that by taking:
e = 0.511 MeV and
c = 3 × 10⁸ m/s
Therefore,
p = 300 B R MeV/c
p = 300(0.250 T)(1.33 m) MeV/c
p = 99.75 MeV/c
The energy of the unstable decayed particle is determined as:
E = √ [m²c⁴ + p²c²]
where
- m is the mass of the particle
- c is the speed of light
- p is the particle's momentum
Therefore,
E = E_p + E_(π⁻)
E = √[ (938.3)² + (99.75)² ] + √[ (139.5)² + (99.75)² ]
E = 1115.08 MeV
Since the particle was initially at rest, its energy is only rest-mass energy so its <em>mass will be 1115.08 MeV/c²</em>
Answer:
hello the answer is 47m/s
Answer:
A and C
Explanation:
Both have mass and are in motion
Explanation:
Yes, it takes more energy to vaporize 1 kg of saturated liquid water at than it would at .