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ra1l [238]
3 years ago
6

In the bohr model of the hydrogen atom the electron circulates around the nucleus in a path of radius 5.1❌10^-11 meter at a freq

uency of 6.8❌10^15 Rev/sec. what value of magnetic field is set up at the center of the orbit?

Physics
1 answer:
LuckyWell [14K]3 years ago
4 0
Enclosed may help ... one problem is to work out what the current that the orbiting electron represents is ...

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A vector is given by R 2i + j+3k. Find (a) magnitudes of the x, y, and z components; (b) the ma nitude of R; and (c) the angles
Darya [45]

Answer:

given,

R = 2i + j+3k

a) magnitude in x = 2

                          y = 1

                          z = 3

b) magnitude of R

R = \sqrt{2^2+1^2+3^2}

R = 3.74 units

c) angle between the R and  the x, y, and z axes.

cos \theta_x=\dfrac{2}{3.74}

θ x = 57.72°

cos \theta_y=\dfrac{1}{3.74}

θ y = 74.51°

cos \theta_z=\dfrac{3}{3.74}

θ z = 36.68°

4 0
3 years ago
Which of the following is NOT an important physical property of matter?
Xelga [282]
Volume isn't a property of matter at all. You can have a big lump or a tiny lump of the same substance.
5 0
3 years ago
Can someone please answer this, ill give you brainliest Would be very appreciated.
mina [271]

Water cycle basically involves the change of water into liquid to vapour and again to liquid states through a cyclic manner .

The answers are

  1. Evaporation
  2. Transpiration
  3. Condensation
  4. precipitation
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5 0
2 years ago
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Mary starts from her house, walks 80 meters south, and stops to chat with her aunt on the sidewalk. After chatting for a few min
Vaselesa [24]
The average speed will be:
Total distance travelled divided by time taken
Total distance (in metres)= 80+125+45=250
Total time (minutes) =10
250/10
=25
Thus Mary's average speed is 25 metres per minute.
6 0
4 years ago
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What is the gravitational potential energy of a 1.02 kg book on the top of a 2.0m locker
zmey [24]

Answer:

20.4

Explanation:

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3 years ago
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