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A spring has a force constant of 80 N/m, it vibrates with a frequency of 7 Hz.
Calculate the,
a)period
b)angular frequency
c) mass of the spring
A spring-mass system has a constant force of 180 N/m. What mass will make it to vibrate at : a) 3.0 Hz and b) 5 Hz?
A small sphere has a mass of 0.02 kg and the mass of large sphere is 0.4 kg. The center distance between the two sphere is 0.03 m. Calculate the gravitational force on each sphere due to each other.
Calculate the force of gravity of the husband and wife, the husband has a mass of 85 kg and the wife has a mass of 65 kg. They are 0.75 m apart
A planet Mars has a mass of 6.4x10²³ kg and its moon, Phobos has a mass of 9.6x10¹⁵kg. The garvitational force between Mars and Phobos is 4.6x10¹⁵ N. Find the radius of the orbit between Mars and Phobos?
Calculate ionization potential and first excitation potential of the hydrogen
atom taking ℎ = 6.62 x 10−34𝐽𝑠, 𝑒 = 1.6 x 10−19
, 𝑚 = 9.1 x 10−31𝑘𝑔.
Alden works as an astronaut who has been sent to the International Space Station (ISS). At one instance while he is at rest, Alden throws a 5.0-kg bowling ball away from him at a rate of 2.0 m/s relative to ISS. At what speed and direction will he start to move after he releases the ball? *
Could you verify if the strong and weak forms of action-
Reaction law hold between
1- two point charges
2- two electric dipoles
3- two magnets
Construct your own theoretical model (including numerical calculations and physical processes) to continuously charge the earth if the currents (about 1800)
A) from atmosphere tend to flow towards it
(Else earth must get neutralised within about half an hour !)
A very very thin charged shell is set into spin (at some rate linearly increasing with time ). Calculate the electric field inside ?
